| 1 |
/* |
| 2 |
* Copyright (c) 2021-2022 joshua stein <jcs@jcs.org> |
| 3 |
* |
| 4 |
* Permission to use, copy, modify, and distribute this software for any |
| 5 |
* purpose with or without fee is hereby granted, provided that the above |
| 6 |
* copyright notice and this permission notice appear in all copies. |
| 7 |
* |
| 8 |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 9 |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 10 |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 11 |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 12 |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 13 |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 15 |
*/ |
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|
| 17 |
#include <stdarg.h> |
| 18 |
#include <stdio.h> |
| 19 |
#include <string.h> |
| 20 |
|
| 21 |
#include "wikipedia.h" |
| 22 |
#include "browser.h" |
| 23 |
#include "focusable.h" |
| 24 |
#include "http.h" |
| 25 |
#include "util.h" |
| 26 |
|
| 27 |
#define PADDING 10 |
| 28 |
#define BROWSER_FONT_SIZE 10 |
| 29 |
#define BROWSER_FONT geneva |
| 30 |
|
| 31 |
bool browser_close(struct focusable *focusable); |
| 32 |
void browser_idle(struct focusable *focusable, EventRecord *event); |
| 33 |
void browser_update_menu(struct browser *browser); |
| 34 |
void browser_update(struct focusable *focusable, EventRecord *event); |
| 35 |
void browser_key_down(struct focusable *focusable, EventRecord *event); |
| 36 |
void browser_mouse_down(struct focusable *focusable, EventRecord *event); |
| 37 |
bool browser_handle_menu(struct focusable *focusable, short menu, |
| 38 |
short item); |
| 39 |
void browser_atexit(struct focusable *focusable); |
| 40 |
bool browser_avoid_te_overflow(struct browser *browser, TEHandle te, |
| 41 |
short line_height); |
| 42 |
bool browser_debug_enabled(struct browser *browser); |
| 43 |
void browser_live_search(struct browser *browser); |
| 44 |
void browser_hide_search_results(struct browser *browser); |
| 45 |
|
| 46 |
Pattern fill_pattern; |
| 47 |
|
| 48 |
void |
| 49 |
browser_idle(struct focusable *focusable, EventRecord *event) |
| 50 |
{ |
| 51 |
struct browser *browser = (struct browser *)focusable->cookie; |
| 52 |
size_t len; |
| 53 |
|
| 54 |
switch (browser->state) { |
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case BROWSER_STATE_IDLE: |
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TEIdle(browser->input_te); |
| 57 |
|
| 58 |
if (browser->last_input_for_search != 0 && |
| 59 |
(Ticks - browser->last_input_for_search > 30)) { |
| 60 |
browser->last_input_for_search = 0; |
| 61 |
browser_live_search(browser); |
| 62 |
} |
| 63 |
break; |
| 64 |
case BROWSER_STATE_ARTICLE_GET: { |
| 65 |
TERec *te; |
| 66 |
char *input; |
| 67 |
|
| 68 |
HLock(browser->input_te); |
| 69 |
te = *(browser->input_te); |
| 70 |
HLock(te->hText); |
| 71 |
(*(te->hText))[te->teLength] = '\0'; |
| 72 |
input = xstrdup(*(te->hText), "browser te input"); |
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HUnlock(te->hText); |
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HUnlock(browser->input_te); |
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|
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SetCursor(*(GetCursor(watchCursor))); |
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browser->wpr = wikipedia_fetch_article(browser, input); |
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xfree(&input); |
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browser->state = BROWSER_STATE_ARTICLE_PROCESS; |
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break; |
| 81 |
} |
| 82 |
case BROWSER_STATE_ARTICLE_PROCESS: |
| 83 |
if (browser->wpr == NULL) { |
| 84 |
browser->state = BROWSER_STATE_IDLE; |
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break; |
| 86 |
} |
| 87 |
|
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wikipedia_request_process(browser->wpr); |
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|
| 90 |
if (browser->wpr->state == WP_STATE_DONE) |
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browser->state = BROWSER_STATE_ARTICLE_DONE; |
| 92 |
else if (browser->wpr->state == WP_STATE_HAVE_REDIRECT) { |
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progress("Following redirect to %s...", |
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browser->wpr->normalized_title); |
| 95 |
TESetText(browser->wpr->normalized_title, |
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strlen(browser->wpr->normalized_title), browser->input_te); |
| 97 |
HLock(browser->input_te); |
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InvalRect(&(*(browser->input_te))->viewRect); |
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HUnlock(browser->input_te); |
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browser->state = BROWSER_STATE_ARTICLE_GET; |
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xfree(&browser->wpr); |
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} |
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|
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break; |
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case BROWSER_STATE_ARTICLE_DONE: |
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UpdateScrollbarForTE(browser->win, browser->te_scroller, |
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browser->te, false); |
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progress(NULL); |
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SetCursor(&arrow); |
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browser->state = BROWSER_STATE_IDLE; |
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break; |
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} |
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} |
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|
| 115 |
struct browser * |
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browser_init(void) |
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{ |
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char title[256]; |
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struct browser *browser; |
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struct focusable *focusable; |
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Rect bounds = { 0 }, te_bounds = { 0 }; |
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Rect data_bounds = { 0, 0, 0, 1 }; /* tlbr */ |
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Point cell_size = { 0, 0 }; |
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Cell cell = { 0 }; |
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short n, width, height; |
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|
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browser = xmalloczero(sizeof(struct browser), "browser"); |
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browser->state = BROWSER_STATE_IDLE; |
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|
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GetIndPattern(&fill_pattern, sysPatListID, 22); |
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|
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/* main window */ |
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width = screenBits.bounds.right - screenBits.bounds.left - PADDING; |
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if (width > 540) |
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width = 540; |
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height = screenBits.bounds.bottom - screenBits.bounds.top - |
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PADDING - (GetMBarHeight() * 2); |
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if (height > 340) |
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height = 340; |
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center_in_screen(width, height, true, &bounds); |
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|
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snprintf(title, sizeof(title), "%s", PROGRAM_NAME); |
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CtoPstr(title); |
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browser->win = NewWindow(0L, &bounds, title, false, noGrowDocProc, |
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(WindowPtr)-1L, true, 0); |
| 146 |
if (!browser->win) |
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err(1, "Can't create window"); |
| 148 |
SetPort(browser->win); |
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|
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/* search input TE */ |
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bounds.top = PADDING; |
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bounds.left = PADDING; |
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bounds.right = browser->win->portRect.right - PADDING; |
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bounds.bottom = bounds.top + 16; |
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te_bounds = bounds; |
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InsetRect(&te_bounds, 2, 2); |
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TextFont(geneva); |
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TextSize(10); |
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browser->input_te = TENew(&te_bounds, &bounds); |
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TEAutoView(true, browser->input_te); |
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TEActivate(browser->input_te); |
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|
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/* main article TE bounds */ |
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browser->te_bounds.top = (*(browser->input_te))->viewRect.bottom + |
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PADDING; |
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browser->te_bounds.left = PADDING; |
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browser->te_bounds.right = browser->win->portRect.right - |
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SCROLLBAR_WIDTH - PADDING; |
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browser->te_bounds.bottom = browser->win->portRect.bottom - PADDING; |
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|
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/* debug TE, off-screen until enabled */ |
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bounds = browser->te_bounds; |
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bounds.top += browser->win->portRect.bottom; |
| 174 |
bounds.bottom += browser->win->portRect.bottom; |
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te_bounds = bounds; |
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InsetRect(&te_bounds, 2, 2); |
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browser->debug_te = TENew(&te_bounds, &bounds); |
| 178 |
TEAutoView(false, browser->debug_te); |
| 179 |
(*(browser->debug_te))->caretHook = NullCaretHook; |
| 180 |
TEActivate(browser->debug_te); |
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|
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/* main article TE */ |
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bounds = browser->te_bounds; |
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te_bounds = bounds; |
| 185 |
InsetRect(&te_bounds, 2, 2); |
| 186 |
browser->te = TEStylNew(&te_bounds, &bounds); |
| 187 |
TEAutoView(false, browser->te); |
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(*(browser->te))->caretHook = NullCaretHook; |
| 189 |
TEActivate(browser->te); |
| 190 |
|
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/* scrollbar for diff text */ |
| 192 |
bounds.right = browser->win->portRect.right - PADDING; |
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bounds.left = bounds.right - SCROLLBAR_WIDTH; |
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bounds.bottom++; |
| 195 |
bounds.top--; |
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browser->te_scroller = NewControl(browser->win, &bounds, "\p", true, |
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1, 1, 1, scrollBarProc, 0L); |
| 198 |
|
| 199 |
browser_update_menu(browser); |
| 200 |
UpdateScrollbarForTE(browser->win, browser->te_scroller, |
| 201 |
browser->te, true); |
| 202 |
|
| 203 |
focusable = xmalloczero(sizeof(struct focusable), "focusable"); |
| 204 |
focusable->cookie = browser; |
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focusable->win = browser->win; |
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focusable->idle = browser_idle; |
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focusable->update = browser_update; |
| 208 |
focusable->mouse_down = browser_mouse_down; |
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focusable->key_down = browser_key_down; |
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focusable->menu = browser_handle_menu; |
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focusable->close = browser_close; |
| 212 |
focusable->atexit = browser_atexit; |
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focusable_add(focusable); |
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|
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return browser; |
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} |
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|
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bool |
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browser_close(struct focusable *focusable) |
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{ |
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struct browser *browser = (struct browser *)focusable->cookie; |
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|
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if (browser->wpr) { |
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wikipedia_request_abort(browser->wpr); |
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browser->wpr = NULL; |
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} |
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|
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TEDispose(browser->te); |
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DisposeWindow(browser->win); |
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|
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xfree(&browser); |
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|
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return true; |
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} |
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|
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void |
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browser_atexit(struct focusable *focusable) |
| 238 |
{ |
| 239 |
struct browser *browser = (struct browser *)focusable->cookie; |
| 240 |
|
| 241 |
if (browser->wpr) { |
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wikipedia_request_abort(browser->wpr); |
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browser->wpr = NULL; |
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} |
| 245 |
} |
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|
| 247 |
void |
| 248 |
browser_update_menu(struct browser *browser) |
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{ |
| 250 |
size_t vlines; |
| 251 |
TERec *te; |
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Cell cell = { 0, 0 }; |
| 253 |
|
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TextFont(systemFont); |
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TextSize(12); |
| 256 |
|
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te = *(browser->te); |
| 258 |
|
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DisableItem(edit_menu, EDIT_MENU_CUT_ID); |
| 260 |
|
| 261 |
if (te->selStart == te->selEnd) |
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DisableItem(edit_menu, EDIT_MENU_COPY_ID); |
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else |
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EnableItem(edit_menu, EDIT_MENU_COPY_ID); |
| 265 |
|
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DisableItem(edit_menu, EDIT_MENU_PASTE_ID); |
| 267 |
|
| 268 |
if (te->nLines == 0) { |
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DisableItem(edit_menu, EDIT_MENU_SELECT_ALL_ID); |
| 270 |
DisableItem(edit_menu, VIEW_MENU_DEBUG_ID); |
| 271 |
} else { |
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EnableItem(edit_menu, EDIT_MENU_SELECT_ALL_ID); |
| 273 |
EnableItem(edit_menu, VIEW_MENU_DEBUG_ID); |
| 274 |
} |
| 275 |
} |
| 276 |
|
| 277 |
void |
| 278 |
browser_update(struct focusable *focusable, EventRecord *event) |
| 279 |
{ |
| 280 |
struct browser *browser = (struct browser *)focusable->cookie; |
| 281 |
Str255 buf; |
| 282 |
Rect r; |
| 283 |
short what = -1; |
| 284 |
|
| 285 |
if (event != NULL) |
| 286 |
what = event->what; |
| 287 |
|
| 288 |
switch (what) { |
| 289 |
case -1: |
| 290 |
case updateEvt: |
| 291 |
FillRect(&browser->win->portRect, fill_pattern); |
| 292 |
|
| 293 |
HLock(browser->input_te); |
| 294 |
r = (*(browser->input_te))->viewRect; |
| 295 |
HUnlock(browser->input_te); |
| 296 |
FillRect(&r, white); |
| 297 |
TEUpdate(&r, browser->input_te); |
| 298 |
InsetRect(&r, -1, -1); |
| 299 |
FrameRect(&r); |
| 300 |
|
| 301 |
HLock(browser->te); |
| 302 |
r = (*(browser->te))->viewRect; |
| 303 |
HUnlock(browser->te); |
| 304 |
FillRect(&r, white); |
| 305 |
TEUpdate(&r, browser->te); |
| 306 |
InsetRect(&r, -1, -1); |
| 307 |
FrameRect(&r); |
| 308 |
|
| 309 |
if (browser->search_results != NULL) { |
| 310 |
HLock(browser->search_results); |
| 311 |
r = (*(browser->search_results))->rView; |
| 312 |
HUnlock(browser->search_results); |
| 313 |
InsetRect(&r, -1, -1); |
| 314 |
FillRect(&r, white); |
| 315 |
FrameRect(&r); |
| 316 |
LUpdate(browser->win->visRgn, browser->search_results); |
| 317 |
} |
| 318 |
|
| 319 |
UpdtControl(browser->win, browser->win->visRgn); |
| 320 |
|
| 321 |
browser_update_menu(browser); |
| 322 |
|
| 323 |
break; |
| 324 |
} |
| 325 |
} |
| 326 |
|
| 327 |
void |
| 328 |
browser_mouse_down(struct focusable *focusable, EventRecord *event) |
| 329 |
{ |
| 330 |
struct browser *browser = (struct browser *)focusable->cookie; |
| 331 |
char str[255]; |
| 332 |
Cell selected = { 0 }; |
| 333 |
Point p; |
| 334 |
ControlHandle control; |
| 335 |
Rect r; |
| 336 |
short val, adj, page, len, part, off; |
| 337 |
size_t n; |
| 338 |
|
| 339 |
p = event->where; |
| 340 |
GlobalToLocal(&p); |
| 341 |
|
| 342 |
HLock(browser->input_te); |
| 343 |
r = (*(browser->input_te))->viewRect; |
| 344 |
HUnlock(browser->input_te); |
| 345 |
if (PtInRect(p, &r)) { |
| 346 |
TEClick(p, ((event->modifiers & shiftKey) != 0), browser->input_te); |
| 347 |
browser_update_menu(browser); |
| 348 |
return; |
| 349 |
} |
| 350 |
|
| 351 |
if (browser->search_results != NULL) { |
| 352 |
HLock(browser->search_results); |
| 353 |
r = (*(browser->search_results))->rView; |
| 354 |
HUnlock(browser->search_results); |
| 355 |
r.right += SCROLLBAR_WIDTH; |
| 356 |
if (PtInRect(p, &r)) { |
| 357 |
LClick(p, event->modifiers, browser->search_results); |
| 358 |
selected.v = 0; |
| 359 |
if (LGetSelect(true, &selected, browser->search_results)) { |
| 360 |
len = sizeof(str); |
| 361 |
LGetCell(&str, &len, selected, browser->search_results); |
| 362 |
TESetText(str, len, browser->input_te); |
| 363 |
HLock(browser->input_te); |
| 364 |
InvalRect(&(*(browser->input_te))->viewRect); |
| 365 |
HUnlock(browser->input_te); |
| 366 |
browser_hide_search_results(browser); |
| 367 |
browser->state = BROWSER_STATE_ARTICLE_GET; |
| 368 |
} |
| 369 |
|
| 370 |
return; |
| 371 |
} |
| 372 |
} |
| 373 |
|
| 374 |
if (browser_debug_enabled(browser)) { |
| 375 |
HLock(browser->debug_te); |
| 376 |
r = (*(browser->debug_te))->viewRect; |
| 377 |
HUnlock(browser->debug_te); |
| 378 |
if (PtInRect(p, &r)) { |
| 379 |
TEClick(p, ((event->modifiers & shiftKey) != 0), browser->debug_te); |
| 380 |
browser_update_menu(browser); |
| 381 |
return; |
| 382 |
} |
| 383 |
} else { |
| 384 |
HLock(browser->te); |
| 385 |
r = (*(browser->te))->viewRect; |
| 386 |
HUnlock(browser->te); |
| 387 |
if (PtInRect(p, &r)) { |
| 388 |
TEClick(p, ((event->modifiers & shiftKey) != 0), browser->te); |
| 389 |
|
| 390 |
off = TEGetOffset(p, browser->te); |
| 391 |
for (n = 0; n < browser->links_count; n++) { |
| 392 |
struct browser_link *link = &browser->links[n]; |
| 393 |
|
| 394 |
if ((link->pos <= off) && (off < link->pos + link->len)) { |
| 395 |
TESetText(link->link, strlen(link->link), browser->input_te); |
| 396 |
HLock(browser->input_te); |
| 397 |
InvalRect(&(*(browser->input_te))->viewRect); |
| 398 |
HUnlock(browser->input_te); |
| 399 |
browser->state = BROWSER_STATE_ARTICLE_GET; |
| 400 |
break; |
| 401 |
} |
| 402 |
} |
| 403 |
|
| 404 |
browser_update_menu(browser); |
| 405 |
return; |
| 406 |
} |
| 407 |
} |
| 408 |
|
| 409 |
switch (part = FindControl(p, browser->win, &control)) { |
| 410 |
case inButton: |
| 411 |
break; |
| 412 |
case inUpButton: |
| 413 |
case inDownButton: |
| 414 |
case inPageUp: |
| 415 |
case inPageDown: |
| 416 |
if (control == browser->te_scroller) { |
| 417 |
if (browser_debug_enabled(browser)) |
| 418 |
SetTrackControlTE(browser->debug_te); |
| 419 |
else |
| 420 |
SetTrackControlTE(browser->te); |
| 421 |
} else |
| 422 |
break; |
| 423 |
TrackControl(control, p, TrackMouseDownInControl); |
| 424 |
break; |
| 425 |
case inThumb: |
| 426 |
val = GetCtlValue(control); |
| 427 |
if (TrackControl(control, p, 0L) == 0) |
| 428 |
break; |
| 429 |
adj = val - GetCtlValue(control); |
| 430 |
if (adj != 0) { |
| 431 |
val -= adj; |
| 432 |
if (control == browser->te_scroller) { |
| 433 |
if (browser_debug_enabled(browser)) |
| 434 |
TEScroll(0, adj * TEGetHeight(0, 0, |
| 435 |
browser->debug_te), browser->debug_te); |
| 436 |
else |
| 437 |
TEScroll(0, adj * TEGetHeight(0, 0, |
| 438 |
browser->te), browser->te); |
| 439 |
} |
| 440 |
SetCtlValue(control, val); |
| 441 |
} |
| 442 |
break; |
| 443 |
} |
| 444 |
} |
| 445 |
|
| 446 |
void |
| 447 |
browser_key_down(struct focusable *focusable, EventRecord *event) |
| 448 |
{ |
| 449 |
struct browser *browser = (struct browser *)(focusable->cookie); |
| 450 |
char k; |
| 451 |
|
| 452 |
k = (event->message & charCodeMask); |
| 453 |
if (k == '\r') { |
| 454 |
browser->state = BROWSER_STATE_ARTICLE_GET; |
| 455 |
} else { |
| 456 |
TEKey(k, browser->input_te); |
| 457 |
TESelView(browser->input_te); |
| 458 |
browser->last_input_for_search = Ticks; |
| 459 |
} |
| 460 |
} |
| 461 |
|
| 462 |
void |
| 463 |
browser_live_search(struct browser *browser) |
| 464 |
{ |
| 465 |
TERec *te; |
| 466 |
Rect bounds = { 0 }; |
| 467 |
Rect data_bounds = { 0, 0, 0, 1 }; /* tlbr */ |
| 468 |
char *input, **results, k; |
| 469 |
size_t nresults, n; |
| 470 |
Point cell_size = { 0, 0 }; |
| 471 |
Cell cell = { 0, 0 }; |
| 472 |
Rect r; |
| 473 |
|
| 474 |
HLock(browser->input_te); |
| 475 |
te = *(browser->input_te); |
| 476 |
|
| 477 |
if (te->teLength == 0) { |
| 478 |
HUnlock(browser->input_te); |
| 479 |
browser_hide_search_results(browser); |
| 480 |
return; |
| 481 |
} |
| 482 |
|
| 483 |
SetCursor(*(GetCursor(watchCursor))); |
| 484 |
|
| 485 |
HLock(te->hText); |
| 486 |
(*(te->hText))[te->teLength] = '\0'; |
| 487 |
input = xstrdup(*(te->hText), "browser te input"); |
| 488 |
HUnlock(te->hText); |
| 489 |
HUnlock(browser->input_te); |
| 490 |
nresults = wikipedia_fetch_search_results(browser, input, &results); |
| 491 |
xfree(&input); |
| 492 |
|
| 493 |
if (browser->search_results == NULL) { |
| 494 |
bounds.top = (*(browser->input_te))->viewRect.bottom + 1; |
| 495 |
bounds.left = PADDING; |
| 496 |
bounds.bottom = bounds.top + 70; |
| 497 |
bounds.right = bounds.left + |
| 498 |
(((*(browser->input_te))->viewRect.right - |
| 499 |
(*(browser->input_te))->viewRect.left) / 2); |
| 500 |
|
| 501 |
browser->search_results = LNew(&bounds, &data_bounds, cell_size, 0, |
| 502 |
browser->win, false, false, false, true); |
| 503 |
if (!browser->search_results) |
| 504 |
panic("LNew failed"); |
| 505 |
(*(browser->search_results))->selFlags = lOnlyOne; |
| 506 |
LAddColumn(1, 0, browser->search_results); |
| 507 |
} else { |
| 508 |
LDelRow(0, 0, browser->search_results); |
| 509 |
} |
| 510 |
|
| 511 |
for (n = 0; n < nresults; n++) { |
| 512 |
size_t len; |
| 513 |
len = strlen(results[n]); |
| 514 |
LAddRow(1, cell.v, browser->search_results); |
| 515 |
LSetCell(results[n], len, cell, |
| 516 |
browser->search_results); |
| 517 |
cell.v++; |
| 518 |
xfree(&results[n]); |
| 519 |
} |
| 520 |
|
| 521 |
r = (*(browser->search_results))->rView; |
| 522 |
FillRect(&r, white); |
| 523 |
InsetRect(&r, -1, -1); |
| 524 |
FrameRect(&r); |
| 525 |
LDoDraw(true, browser->search_results); |
| 526 |
LUpdate(browser->win->visRgn, browser->search_results); |
| 527 |
|
| 528 |
SetCursor(&arrow); |
| 529 |
} |
| 530 |
|
| 531 |
void |
| 532 |
browser_hide_search_results(struct browser *browser) |
| 533 |
{ |
| 534 |
Rect r; |
| 535 |
|
| 536 |
if (browser->search_results == NULL) |
| 537 |
return; |
| 538 |
|
| 539 |
r = (*(browser->search_results))->rView; |
| 540 |
r.right += SCROLLBAR_WIDTH; |
| 541 |
InsetRect(&r, -1, -1); |
| 542 |
InvalRect(&r); |
| 543 |
|
| 544 |
LDispose(browser->search_results); |
| 545 |
browser->search_results = NULL; |
| 546 |
} |
| 547 |
|
| 548 |
bool |
| 549 |
browser_handle_menu(struct focusable *focusable, short menu, short item) |
| 550 |
{ |
| 551 |
struct browser *browser = (struct browser *)focusable->cookie; |
| 552 |
|
| 553 |
switch (menu) { |
| 554 |
case EDIT_MENU_ID: |
| 555 |
switch (item) { |
| 556 |
case EDIT_MENU_COPY_ID: |
| 557 |
if (browser_debug_enabled(browser)) |
| 558 |
TECopy(browser->debug_te); |
| 559 |
else |
| 560 |
TECopy(browser->te); |
| 561 |
return true; |
| 562 |
case EDIT_MENU_SELECT_ALL_ID: |
| 563 |
if (browser_debug_enabled(browser)) |
| 564 |
TESetSelect(0, 1024 * 32, browser->debug_te); |
| 565 |
else |
| 566 |
TESetSelect(0, 1024 * 32, browser->te); |
| 567 |
return true; |
| 568 |
} |
| 569 |
break; |
| 570 |
case VIEW_MENU_ID: |
| 571 |
switch (item) { |
| 572 |
case VIEW_MENU_DEBUG_ID: { |
| 573 |
Rect bounds, te_bounds; |
| 574 |
|
| 575 |
bounds = browser->te_bounds; |
| 576 |
te_bounds = bounds; |
| 577 |
InsetRect(&te_bounds, 2, 2); |
| 578 |
|
| 579 |
HLock(browser->debug_te); |
| 580 |
HLock(browser->te); |
| 581 |
|
| 582 |
SetCtlValue(browser->te_scroller, GetCtlMin(browser->te_scroller)); |
| 583 |
|
| 584 |
if (browser_debug_enabled(browser)) { |
| 585 |
/* disable debugging */ |
| 586 |
SetItemMark(view_menu, VIEW_MENU_DEBUG_ID, noMark); |
| 587 |
|
| 588 |
(*(browser->debug_te))->destRect = (*(browser->te))->destRect; |
| 589 |
(*(browser->debug_te))->viewRect = (*(browser->te))->viewRect; |
| 590 |
(*(browser->te))->destRect = te_bounds; |
| 591 |
(*(browser->te))->viewRect = bounds; |
| 592 |
|
| 593 |
EraseRect(&(*(browser->te))->destRect); |
| 594 |
TEUpdate(&(*(browser->te))->destRect, browser->te); |
| 595 |
UpdateScrollbarForTE(browser->win, browser->te_scroller, |
| 596 |
browser->te, false); |
| 597 |
} else { |
| 598 |
/* enable debugging */ |
| 599 |
SetItemMark(view_menu, VIEW_MENU_DEBUG_ID, checkMark); |
| 600 |
|
| 601 |
(*(browser->te))->destRect = (*(browser->debug_te))->destRect; |
| 602 |
(*(browser->te))->viewRect = (*(browser->debug_te))->viewRect; |
| 603 |
(*(browser->debug_te))->destRect = te_bounds; |
| 604 |
(*(browser->debug_te))->viewRect = bounds; |
| 605 |
|
| 606 |
EraseRect(&(*(browser->debug_te))->destRect); |
| 607 |
TEUpdate(&(*(browser->debug_te))->destRect, browser->debug_te); |
| 608 |
UpdateScrollbarForTE(browser->win, browser->te_scroller, |
| 609 |
browser->debug_te, false); |
| 610 |
} |
| 611 |
|
| 612 |
HUnlock(browser->debug_te); |
| 613 |
HLock(browser->te); |
| 614 |
break; |
| 615 |
} |
| 616 |
} |
| 617 |
break; |
| 618 |
} |
| 619 |
|
| 620 |
return false; |
| 621 |
} |
| 622 |
|
| 623 |
bool |
| 624 |
browser_debug_enabled(struct browser *browser) |
| 625 |
{ |
| 626 |
short mark; |
| 627 |
|
| 628 |
GetItemMark(view_menu, VIEW_MENU_DEBUG_ID, &mark); |
| 629 |
|
| 630 |
return (mark != noMark); |
| 631 |
} |
| 632 |
|
| 633 |
size_t |
| 634 |
browser_debug_print(struct browser *browser, const char *str, |
| 635 |
size_t len) |
| 636 |
{ |
| 637 |
char tstr[1024]; |
| 638 |
short line_height; |
| 639 |
short was_len; |
| 640 |
size_t n = 0; |
| 641 |
|
| 642 |
line_height = BROWSER_FONT_SIZE + 3; |
| 643 |
|
| 644 |
HLock(browser->debug_te); |
| 645 |
was_len = (*(browser->debug_te))->teLength; |
| 646 |
HUnlock(browser->debug_te); |
| 647 |
|
| 648 |
browser_avoid_te_overflow(browser, browser->debug_te, line_height); |
| 649 |
|
| 650 |
while (len) { |
| 651 |
if (*str == '\n') |
| 652 |
tstr[n++] = '\r'; |
| 653 |
else |
| 654 |
tstr[n++] = *str; |
| 655 |
|
| 656 |
str++; |
| 657 |
len--; |
| 658 |
|
| 659 |
if (n == sizeof(tstr) || len == 0) { |
| 660 |
TESetSelect(SHRT_MAX, SHRT_MAX, browser->debug_te); |
| 661 |
TEInsert(tstr, n, browser->debug_te); |
| 662 |
if (len == 0) |
| 663 |
break; |
| 664 |
n = 0; |
| 665 |
} |
| 666 |
} |
| 667 |
|
| 668 |
if (was_len == 0) { |
| 669 |
SetCtlValue(browser->te_scroller, GetCtlMin(browser->te_scroller)); |
| 670 |
UpdateScrollbarForTE(browser->win, browser->te_scroller, |
| 671 |
browser->debug_te, false); |
| 672 |
} |
| 673 |
|
| 674 |
HUnlock(browser->debug_te); |
| 675 |
|
| 676 |
return len; |
| 677 |
} |
| 678 |
|
| 679 |
bool |
| 680 |
browser_avoid_te_overflow(struct browser *browser, TEHandle te, |
| 681 |
short line_height) |
| 682 |
{ |
| 683 |
RgnHandle savergn; |
| 684 |
Rect zerorect = { 0, 0, 0, 0 }; |
| 685 |
|
| 686 |
HLock(te); |
| 687 |
|
| 688 |
/* too many lines */ |
| 689 |
if ((*te)->nLines >= (nitems((*te)->lineStarts) - 10)) |
| 690 |
goto te_overflow; |
| 691 |
|
| 692 |
/* too many characters */ |
| 693 |
if ((*te)->teLength >= (SHRT_MAX - 500)) |
| 694 |
goto te_overflow; |
| 695 |
|
| 696 |
/* rect of all lines is too tall */ |
| 697 |
if ((*te)->nLines * line_height >= (SHRT_MAX - 100)) |
| 698 |
goto te_overflow; |
| 699 |
|
| 700 |
HUnlock(te); |
| 701 |
|
| 702 |
return false; |
| 703 |
|
| 704 |
te_overflow: |
| 705 |
savergn = NewRgn(); |
| 706 |
GetClip(savergn); |
| 707 |
/* create an empty clip region so all TE updates are hidden */ |
| 708 |
ClipRect(&zerorect); |
| 709 |
|
| 710 |
/* select some lines at the start, delete them */ |
| 711 |
TESetSelect(0, (*te)->lineStarts[5], te); |
| 712 |
TEDelete(te); |
| 713 |
|
| 714 |
/* scroll up, causing a repaint */ |
| 715 |
TEPinScroll(0, INT_MAX, te); |
| 716 |
|
| 717 |
/* then scroll back down to what it looked like before we did anything */ |
| 718 |
TEPinScroll(0, -INT_MAX, te); |
| 719 |
|
| 720 |
/* resume normal drawing */ |
| 721 |
SetClip(savergn); |
| 722 |
DisposeRgn(savergn); |
| 723 |
|
| 724 |
HUnlock(te); |
| 725 |
|
| 726 |
return true; |
| 727 |
} |
| 728 |
|
| 729 |
#define BROWSER_SCRAP_ELEMENTS 20 |
| 730 |
static Handle scrp_rec_h = NULL; |
| 731 |
|
| 732 |
size_t |
| 733 |
browser_print(struct browser *browser, const char *str, size_t len, |
| 734 |
unsigned long style) |
| 735 |
{ |
| 736 |
StScrpRec *scrp_rec; |
| 737 |
ScrpSTElement *scrp_ele; |
| 738 |
RgnHandle savergn; |
| 739 |
Rect zerorect = { 0, 0, 0, 0 }; |
| 740 |
size_t n; |
| 741 |
short line_height = 0, was_len = 0; |
| 742 |
static unsigned long last_style = 0; |
| 743 |
struct browser_link *link = NULL; |
| 744 |
|
| 745 |
if (scrp_rec_h == NULL) { |
| 746 |
scrp_rec_h = xNewHandle(sizeof(short) + |
| 747 |
(sizeof(ScrpSTElement) * BROWSER_SCRAP_ELEMENTS)); |
| 748 |
HLock(scrp_rec_h); |
| 749 |
memset(*scrp_rec_h, 0, GetHandleSize(scrp_rec_h)); |
| 750 |
} else { |
| 751 |
HLock(scrp_rec_h); |
| 752 |
} |
| 753 |
|
| 754 |
line_height = BROWSER_FONT_SIZE + 3; |
| 755 |
|
| 756 |
scrp_rec = (StScrpRec *)(*scrp_rec_h); |
| 757 |
scrp_rec->scrpNStyles = 1; |
| 758 |
scrp_ele = &scrp_rec->scrpStyleTab[0]; |
| 759 |
scrp_ele->scrpHeight = line_height; |
| 760 |
scrp_ele->scrpAscent = BROWSER_FONT_SIZE; |
| 761 |
scrp_ele->scrpFont = BROWSER_FONT; |
| 762 |
scrp_ele->scrpSize = BROWSER_FONT_SIZE; |
| 763 |
scrp_ele->scrpFace = 0; |
| 764 |
|
| 765 |
if (style & STYLE_BOLD) |
| 766 |
scrp_ele->scrpFace |= bold | condense; |
| 767 |
if (style & (STYLE_H1 | STYLE_H2 | STYLE_H3 | STYLE_H4 | STYLE_H5)) |
| 768 |
scrp_ele->scrpFace |= bold; |
| 769 |
if (style & STYLE_ITALIC) |
| 770 |
scrp_ele->scrpFace |= italic; |
| 771 |
if (style & STYLE_LINK) |
| 772 |
scrp_ele->scrpFace |= underline; |
| 773 |
if (style & STYLE_H1) { |
| 774 |
scrp_ele->scrpSize += 8; |
| 775 |
scrp_ele->scrpHeight += 10; |
| 776 |
scrp_ele->scrpAscent += 8; |
| 777 |
} else if (style & STYLE_H2) { |
| 778 |
scrp_ele->scrpSize += 4; |
| 779 |
scrp_ele->scrpHeight += 6; |
| 780 |
scrp_ele->scrpAscent += 4; |
| 781 |
} else if (style & STYLE_H3) { |
| 782 |
scrp_ele->scrpSize += 2; |
| 783 |
scrp_ele->scrpHeight += 4; |
| 784 |
scrp_ele->scrpAscent += 2; |
| 785 |
} |
| 786 |
|
| 787 |
if (style & STYLE_LINK) { |
| 788 |
if (browser->links_count == browser->links_size) { |
| 789 |
browser->links_size += 256; |
| 790 |
browser->links = xreallocarray(browser->links, |
| 791 |
browser->links_size, sizeof(struct browser_link)); |
| 792 |
memset(&browser->links[browser->links_count], 0, |
| 793 |
sizeof(struct browser_link) * 256); |
| 794 |
} |
| 795 |
|
| 796 |
link = &browser->links[browser->links_count++]; |
| 797 |
|
| 798 |
/* Computer Storage|Storage -> Computer Storage */ |
| 799 |
/* Atari 2600 -> Atari 2600 */ |
| 800 |
for (n = 0; n <= len; n++) { |
| 801 |
if (n == len) { |
| 802 |
link->link = xstrndup(str, n, "link"); |
| 803 |
break; |
| 804 |
} |
| 805 |
|
| 806 |
if (str[n] == '|') { |
| 807 |
link->link = xstrndup(str, n, "link"); |
| 808 |
str += n + 1; |
| 809 |
len -= n + 1; |
| 810 |
break; |
| 811 |
} |
| 812 |
} |
| 813 |
|
| 814 |
link->len = len; |
| 815 |
} |
| 816 |
|
| 817 |
HUnlock(scrp_rec_h); |
| 818 |
|
| 819 |
browser_avoid_te_overflow(browser, browser->te, line_height); |
| 820 |
|
| 821 |
HLock(browser->te); |
| 822 |
was_len = (*(browser->te))->teLength; |
| 823 |
|
| 824 |
if (style & STYLE_LINK) |
| 825 |
link->pos = was_len; |
| 826 |
|
| 827 |
TESetSelect(SHRT_MAX, SHRT_MAX, browser->te); |
| 828 |
if ((last_style & STYLE_ITALIC) && !(style & STYLE_ITALIC)) |
| 829 |
TEStylInsert(" ", 1, scrp_rec_h, browser->te); |
| 830 |
|
| 831 |
if (style & (STYLE_H1 | STYLE_H2 | STYLE_H3 | STYLE_H4 | STYLE_H5)) { |
| 832 |
while (len && (str[0] == ' ' || str[0] == '\r')) { |
| 833 |
str++; |
| 834 |
len--; |
| 835 |
} |
| 836 |
while (len && (str[len - 1] == ' ' || str[len - 1] == '\r')) { |
| 837 |
len--; |
| 838 |
} |
| 839 |
} |
| 840 |
|
| 841 |
TEStylInsert(str, len, scrp_rec_h, browser->te); |
| 842 |
|
| 843 |
if (style & (STYLE_H1 | STYLE_H2)) |
| 844 |
browser_draw_line(browser); |
| 845 |
else if (style & (STYLE_H3 | STYLE_H4 | STYLE_H5)) |
| 846 |
TEStylInsert("\r", 1, scrp_rec_h, browser->te); |
| 847 |
|
| 848 |
if (was_len == 0) { |
| 849 |
SetCtlValue(browser->te_scroller, GetCtlMin(browser->te_scroller)); |
| 850 |
UpdateScrollbarForTE(browser->win, browser->te_scroller, |
| 851 |
browser->te, false); |
| 852 |
} |
| 853 |
|
| 854 |
HUnlock(browser->te); |
| 855 |
|
| 856 |
last_style = style; |
| 857 |
|
| 858 |
return len; |
| 859 |
} |
| 860 |
|
| 861 |
void |
| 862 |
browser_clear(struct browser *browser) |
| 863 |
{ |
| 864 |
size_t n; |
| 865 |
|
| 866 |
for (n = 0; n < browser->links_count; n++) |
| 867 |
xfree(&browser->links[n].link); |
| 868 |
|
| 869 |
if (browser->links != NULL) |
| 870 |
xfree(&browser->links); |
| 871 |
browser->links_count = 0; |
| 872 |
browser->links_size = 0; |
| 873 |
|
| 874 |
TEPinScroll(0, -SHRT_MAX, browser->debug_te); |
| 875 |
TESetText("", 0, browser->te); |
| 876 |
TESetText("", 0, browser->debug_te); |
| 877 |
|
| 878 |
UpdateScrollbarForTE(browser->win, browser->te_scroller, |
| 879 |
browser->te, true); |
| 880 |
} |
| 881 |
|
| 882 |
void |
| 883 |
browser_draw_line(struct browser *browser) |
| 884 |
{ |
| 885 |
char line[255]; |
| 886 |
size_t n, lsize; |
| 887 |
short curfont, cursize, cwidth; |
| 888 |
unsigned char emd = '—'; /* em-dash 0xd1 */ |
| 889 |
|
| 890 |
curfont = thePort->txFont; |
| 891 |
cursize = thePort->txSize; |
| 892 |
TextFont(BROWSER_FONT); |
| 893 |
TextSize(BROWSER_FONT_SIZE); |
| 894 |
cwidth = CharWidth(emd); |
| 895 |
TextFont(curfont); |
| 896 |
TextSize(cursize); |
| 897 |
|
| 898 |
HLock(browser->te); |
| 899 |
lsize = (*(browser->te))->viewRect.right - (*(browser->te))->viewRect.left; |
| 900 |
HUnlock(browser->te); |
| 901 |
|
| 902 |
lsize /= cwidth; |
| 903 |
if (lsize > sizeof(line)) |
| 904 |
lsize = sizeof(line); |
| 905 |
|
| 906 |
line[0] = '\r'; |
| 907 |
for (n = 1; n < lsize - 1; n++) |
| 908 |
line[n] = emd; |
| 909 |
line[lsize - 1] = '\r'; |
| 910 |
browser_print(browser, line, lsize, STYLE_BOLD); |
| 911 |
} |