Annotation of modules/damieng/graphical_editor/loncapa_daxe/web/loncapa_daxe.dart, revision 1.45
1.1 damieng 1: /*
2: This file is part of LON-CAPA.
3:
4: LON-CAPA is free software: you can redistribute it and/or modify
5: it under the terms of the GNU General Public License as published by
6: the Free Software Foundation, either version 3 of the License, or
7: (at your option) any later version.
8:
9: LON-CAPA is distributed in the hope that it will be useful,
10: but WITHOUT ANY WARRANTY; without even the implied warranty of
11: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12: GNU General Public License for more details.
13:
14: You should have received a copy of the GNU General Public License
15: along with LON-CAPA. If not, see <http://www.gnu.org/licenses/>.
16: */
17:
18: library loncapa_daxe;
19:
20: import 'dart:async';
21: import 'dart:collection';
22: import 'dart:html' as h;
23: import 'package:daxe/daxe.dart';
24: import 'package:daxe/src/xmldom/xmldom.dart' as x;
25: import 'package:daxe/src/strings.dart';
1.14 damieng 26: import 'package:daxe/src/nodes/nodes.dart' show DNCData, DNText, SimpleTypeControl, ParentUpdatingDNText, DNHiddenP, DNString;
1.1 damieng 27: import 'dart:js' as js;
28:
29: import 'lcd_strings.dart';
1.41 damieng 30: part 'about_lc_daxe_dlg.dart';
31: part 'lcd_button.dart';
32: part 'lcd_insert_panel.dart';
1.1 damieng 33: part 'nodes/lcd_block.dart';
1.32 damieng 34: part 'nodes/lcd_block_no_newline.dart';
1.1 damieng 35: part 'nodes/lcd_parameter.dart';
36: part 'nodes/tex_mathjax.dart';
37: part 'nodes/lm.dart';
1.14 damieng 38: part 'nodes/chem.dart';
1.2 damieng 39: part 'nodes/numerical_response.dart';
1.3 damieng 40: part 'nodes/formula_response.dart';
41: part 'nodes/string_response.dart';
1.11 damieng 42: part 'nodes/essay_response.dart';
43: part 'nodes/textfield.dart';
1.1 damieng 44: part 'nodes/radio_response.dart';
45: part 'nodes/radio_foilgroup.dart';
46: part 'nodes/radio_foil.dart';
47: part 'nodes/option_response.dart';
48: part 'nodes/option_foilgroup.dart';
49: part 'nodes/option_foil.dart';
1.6 damieng 50: part 'nodes/match_response.dart';
51: part 'nodes/match_foilgroup.dart';
52: part 'nodes/match_foil.dart';
53: part 'nodes/itemgroup.dart';
54: part 'nodes/match_item.dart';
1.1 damieng 55: part 'nodes/rank_response.dart';
56: part 'nodes/rank_foilgroup.dart';
57: part 'nodes/rank_foil.dart';
1.10 damieng 58: part 'nodes/math_response.dart';
59: part 'nodes/math_answer.dart';
1.13 damieng 60: part 'nodes/organic_response.dart';
61: part 'nodes/jsme_dialog.dart';
62: part 'nodes/reaction_response.dart';
1.5 damieng 63: part 'nodes/textline.dart';
1.1 damieng 64: part 'nodes/hintgroup.dart';
65: part 'nodes/simple_ui_text.dart';
66: part 'nodes/script_block.dart';
1.2 damieng 67: part 'nodes/simple_ui_exception.dart';
1.7 damieng 68: part 'nodes/gnuplot.dart';
1.22 damieng 69: part 'nodes/organic_structure.dart';
1.7 damieng 70: part 'nodes/fake_attribute_element.dart';
71: part 'nodes/plot_axis.dart';
72: part 'nodes/plot_curve.dart';
1.17 damieng 73: part 'nodes/section.dart';
74: part 'nodes/h1.dart';
1.1 damieng 75:
1.18 damieng 76: List<String> knownSectionRoles = ['activity', 'advice', 'bibliography', 'citation',
77: 'conclusion', 'definition', 'demonstration', 'example',
78: 'explanation', 'introduction', 'method', 'more_information',
79: 'objectives', 'prerequisites', 'remark', 'reminder',
80: 'summary', 'syntax', 'warning'];
81:
1.1 damieng 82:
83: void main() {
84: NodeFactory.addCoreDisplayTypes();
85:
1.35 damieng 86: // LON-CAPA specific display types:
87:
1.45 ! damieng 88: setDisplayType('lcdblock',
1.1 damieng 89: (x.Element ref) => new LCDBlock.fromRef(ref),
90: (x.Node node, DaxeNode parent) => new LCDBlock.fromNode(node, parent)
91: );
92:
1.45 ! damieng 93: setDisplayType('texmathjax',
1.1 damieng 94: (x.Element ref) => new TeXMathJax.fromRef(ref),
95: (x.Node node, DaxeNode parent) => new TeXMathJax.fromNode(node, parent)
96: );
97:
1.45 ! damieng 98: setDisplayType('lm',
1.1 damieng 99: (x.Element ref) => new Lm.fromRef(ref),
100: (x.Node node, DaxeNode parent) => new Lm.fromNode(node, parent)
101: );
102:
1.45 ! damieng 103: setDisplayType('chem',
1.14 damieng 104: (x.Element ref) => new Chem.fromRef(ref),
105: (x.Node node, DaxeNode parent) => new Chem.fromNode(node, parent)
106: );
107:
1.45 ! damieng 108: setDisplayType('script',
1.27 damieng 109: (x.Element ref) => new ScriptBlock.fromRef(ref),
110: (x.Node node, DaxeNode parent) => new ScriptBlock.fromNode(node, parent)
1.1 damieng 111: );
112:
1.45 ! damieng 113: setDisplayType('parameter',
1.1 damieng 114: (x.Element ref) => new LCDParameter.fromRef(ref),
115: (x.Node node, DaxeNode parent) => new LCDParameter.fromNode(node, parent)
116: );
117:
1.45 ! damieng 118: setDisplayType('numericalresponse',
1.2 damieng 119: (x.Element ref) => new NumericalResponse.fromRef(ref),
120: (x.Node node, DaxeNode parent) => new NumericalResponse.fromNode(node, parent)
121: );
122:
1.45 ! damieng 123: setDisplayType('formularesponse',
1.3 damieng 124: (x.Element ref) => new FormulaResponse.fromRef(ref),
125: (x.Node node, DaxeNode parent) => new FormulaResponse.fromNode(node, parent)
126: );
127:
1.45 ! damieng 128: setDisplayType('stringresponse',
1.3 damieng 129: (x.Element ref) => new StringResponse.fromRef(ref),
130: (x.Node node, DaxeNode parent) => new StringResponse.fromNode(node, parent)
131: );
132:
1.45 ! damieng 133: setDisplayType('essayresponse',
1.11 damieng 134: (x.Element ref) => new EssayResponse.fromRef(ref),
135: (x.Node node, DaxeNode parent) => new EssayResponse.fromNode(node, parent)
136: );
137:
1.45 ! damieng 138: setDisplayType('radioresponse',
1.1 damieng 139: (x.Element ref) => new RadioResponse.fromRef(ref),
140: (x.Node node, DaxeNode parent) => new RadioResponse.fromNode(node, parent)
141: );
142:
1.45 ! damieng 143: setDisplayType('optionresponse',
1.1 damieng 144: (x.Element ref) => new OptionResponse.fromRef(ref),
145: (x.Node node, DaxeNode parent) => new OptionResponse.fromNode(node, parent)
146: );
147:
1.45 ! damieng 148: setDisplayType('matchresponse',
1.6 damieng 149: (x.Element ref) => new MatchResponse.fromRef(ref),
150: (x.Node node, DaxeNode parent) => new MatchResponse.fromNode(node, parent)
151: );
152:
1.45 ! damieng 153: setDisplayType('rankresponse',
1.1 damieng 154: (x.Element ref) => new RankResponse.fromRef(ref),
155: (x.Node node, DaxeNode parent) => new RankResponse.fromNode(node, parent)
156: );
157:
1.45 ! damieng 158: setDisplayType('mathresponse',
1.10 damieng 159: (x.Element ref) => new MathResponse.fromRef(ref),
160: (x.Node node, DaxeNode parent) => new MathResponse.fromNode(node, parent)
161: );
162:
1.45 ! damieng 163: setDisplayType('organicresponse',
1.13 damieng 164: (x.Element ref) => new OrganicResponse.fromRef(ref),
165: (x.Node node, DaxeNode parent) => new OrganicResponse.fromNode(node, parent)
166: );
167:
1.45 ! damieng 168: setDisplayType('reactionresponse',
1.13 damieng 169: (x.Element ref) => new ReactionResponse.fromRef(ref),
170: (x.Node node, DaxeNode parent) => new ReactionResponse.fromNode(node, parent)
171: );
172:
1.45 ! damieng 173: setDisplayType('foilgroup',
1.1 damieng 174: (x.Element ref) {
175: if (ref.getAttribute('type') == 'radiobuttonresponse--foilgroup')
176: return new RadioFoilgroup.fromRef(ref);
177: else if (ref.getAttribute('type') == 'optionresponse--foilgroup')
178: return new OptionFoilgroup.fromRef(ref);
1.6 damieng 179: else if (ref.getAttribute('type') == 'matchresponse--foilgroup')
180: return new MatchFoilgroup.fromRef(ref);
1.1 damieng 181: else if (ref.getAttribute('type') == 'rankresponse--foilgroup')
182: return new RankFoilgroup.fromRef(ref);
183: return new LCDBlock.fromRef(ref);
184: },
185: (x.Node node, DaxeNode parent) {
186: if (parent is RadioResponse)
187: return new RadioFoilgroup.fromNode(node, parent);
188: else if (parent is OptionResponse)
189: return new OptionFoilgroup.fromNode(node, parent);
1.6 damieng 190: else if (parent is MatchResponse)
191: return new MatchFoilgroup.fromNode(node, parent);
1.1 damieng 192: else if (parent is RankResponse)
193: return new RankFoilgroup.fromNode(node, parent);
194: return new LCDBlock.fromNode(node, parent);
195: }
196: );
197:
1.45 ! damieng 198: setDisplayType('foil',
1.1 damieng 199: (x.Element ref) {
200: if (ref.getAttribute('type') == 'radiobuttonresponse--foil')
201: return new RadioFoil.fromRef(ref);
202: else if (ref.getAttribute('type') == 'optionresponse--foil')
203: return new OptionFoil.fromRef(ref);
1.6 damieng 204: else if (ref.getAttribute('type') == 'matchresponse--foil')
205: return new MatchFoil.fromRef(ref);
1.1 damieng 206: else if (ref.getAttribute('type') == 'rankresponse--foil')
207: return new RankFoil.fromRef(ref);
208: return new LCDBlock.fromRef(ref);
209: },
210: (x.Node node, DaxeNode parent) {
211: if (parent is RadioFoilgroup)
212: return new RadioFoil.fromNode(node, parent);
1.19 damieng 213: else if (parent is OptionFoilgroup ||
214: (parent.parent != null && parent.parent is OptionFoilgroup))
1.1 damieng 215: return new OptionFoil.fromNode(node, parent);
1.19 damieng 216: else if (parent is MatchFoilgroup ||
217: (parent.parent != null && parent.parent is MatchFoilgroup))
1.6 damieng 218: return new MatchFoil.fromNode(node, parent);
1.1 damieng 219: else if (parent is RankFoilgroup)
220: return new RankFoil.fromNode(node, parent);
221: return new LCDBlock.fromNode(node, parent);
222: }
223: );
224:
1.45 ! damieng 225: setDisplayType('itemgroup',
1.6 damieng 226: (x.Element ref) => new Itemgroup.fromRef(ref),
227: (x.Node node, DaxeNode parent) => new Itemgroup.fromNode(node, parent)
228: );
229:
1.45 ! damieng 230: setDisplayType('matchitem',
1.6 damieng 231: (x.Element ref) => new MatchItem.fromRef(ref),
232: (x.Node node, DaxeNode parent) => new MatchItem.fromNode(node, parent)
233: );
234:
1.45 ! damieng 235: setDisplayType('textline',
1.5 damieng 236: (x.Element ref) => new Textline.fromRef(ref),
237: (x.Node node, DaxeNode parent) => new Textline.fromNode(node, parent)
238: );
239:
1.45 ! damieng 240: setDisplayType('textfield',
1.11 damieng 241: (x.Element ref) => new Textfield.fromRef(ref),
242: (x.Node node, DaxeNode parent) => new Textfield.fromNode(node, parent)
243: );
244:
1.45 ! damieng 245: setDisplayType('hintgroup',
1.1 damieng 246: (x.Element ref) => new Hintgroup.fromRef(ref),
247: (x.Node node, DaxeNode parent) => new Hintgroup.fromNode(node, parent)
248: );
249:
1.45 ! damieng 250: setDisplayType('answer',
1.10 damieng 251: (x.Element ref) {
252: if (ref.getAttribute('type') == 'mathresponse--answer')
253: return new MathAnswer.fromRef(ref);
1.27 damieng 254: else if (ref.getAttribute('type') == 'caparesponse--answer')
255: return new LCDBlock.fromRef(ref);
256: else
257: return new ScriptBlock.fromRef(ref);
1.10 damieng 258: },
259: (x.Node node, DaxeNode parent) {
260: if (parent is MathResponse)
261: return new MathAnswer.fromNode(node, parent);
1.27 damieng 262: else if (parent != null && parent.ref != null &&
263: parent.ref.getAttribute('type') == 'caparesponse--answergroup')
264: return new LCDBlock.fromNode(node, parent);
265: else
266: return new ScriptBlock.fromNode(node, parent);
1.10 damieng 267: }
268: );
269:
1.45 ! damieng 270: setDisplayType('gnuplot',
1.7 damieng 271: (x.Element ref) => new Gnuplot.fromRef(ref),
272: (x.Node node, DaxeNode parent) => new Gnuplot.fromNode(node, parent)
273: );
274:
1.45 ! damieng 275: setDisplayType('organicstructure',
1.22 damieng 276: (x.Element ref) => new OrganicStructure.fromRef(ref),
277: (x.Node node, DaxeNode parent) => new OrganicStructure.fromNode(node, parent)
278: );
279:
1.45 ! damieng 280: setDisplayType('fakeattribute',
1.7 damieng 281: (x.Element ref) {
282: if (doc.cfg.elementName(ref) != 'title' || ref.getAttribute('type') == 'lonplot--title')
283: return new FakeAttributeElement.fromRef(ref);
284: return new LCDBlock.fromRef(ref);
285: },
286: (x.Node node, DaxeNode parent) {
287: if (parent is Gnuplot || parent is PlotCurve)
288: return new FakeAttributeElement.fromNode(node, parent);
289: return new LCDBlock.fromNode(node, parent);
290: }
291: );
292:
1.45 ! damieng 293: setDisplayType('plotaxis',
1.7 damieng 294: (x.Element ref) => new PlotAxis.fromRef(ref),
295: (x.Node node, DaxeNode parent) => new PlotAxis.fromNode(node, parent)
296: );
297:
1.45 ! damieng 298: setDisplayType('plotcurve',
1.7 damieng 299: (x.Element ref) => new PlotCurve.fromRef(ref),
300: (x.Node node, DaxeNode parent) => new PlotCurve.fromNode(node, parent)
301: );
302:
1.45 ! damieng 303: setDisplayType('section',
1.17 damieng 304: (x.Element ref) => new Section.fromRef(ref),
305: (x.Node node, DaxeNode parent) => new Section.fromNode(node, parent)
306: );
307:
1.45 ! damieng 308: setDisplayType('h1',
1.17 damieng 309: (x.Element ref) => new H1.fromRef(ref),
310: (x.Node node, DaxeNode parent) => new H1.fromNode(node, parent)
311: );
312:
1.45 ! damieng 313: setDisplayType('lcdblocknonewline',
1.32 damieng 314: (x.Element ref) => new LCDBlockNoNewline.fromRef(ref),
315: (x.Node node, DaxeNode parent) => new LCDBlockNoNewline.fromNode(node, parent)
316: );
317:
1.45 ! damieng 318: setDisplayType('label',
1.31 damieng 319: (x.Element ref) {
320: if (ref.getAttribute('type') == 'lonplot--label')
1.37 damieng 321: return new LCDBlockNoNewline.fromRef(ref); // gnuplot label
1.32 damieng 322: else if (ref.getAttribute('type') == 'randomlabel--label')
323: return new LCDBlockNoNewline.fromRef(ref); // randomlabel label
324: return new DNString.fromRef(ref); // HTML form label
1.31 damieng 325: },
326: (x.Node node, DaxeNode parent) {
327: if (parent is Gnuplot || (parent != null && parent.parent is Gnuplot))
1.37 damieng 328: return new LCDBlockNoNewline.fromNode(node, parent);
1.32 damieng 329: else if (parent != null && parent.ref != null &&
330: parent.ref.getAttribute('type') == 'randomlabel--labelgroup')
331: return new LCDBlockNoNewline.fromNode(node, parent);
1.31 damieng 332: return new DNString.fromNode(node, parent);
333: }
334: );
335:
1.35 damieng 336: // Initialize Daxe, using daxe.initDaxe as a basis.
337: // The insertion panel is customized.
1.28 damieng 338: InsertPanel insertP = new LCDInsertPanel();
339: LeftPanel left = new LeftPanel(insert:insertP);
1.35 damieng 340: // The save action is customized.
1.29 damieng 341: ActionFunction saveFunction= () {
342: doc.save().then((_) {
343: // h.window.alert(Strings.get('save.success'));
344: // update the preview iframe
1.35 damieng 345: h.IFrameElement previewIFrame = h.document.getElementById('preview_iframe');
346: if (previewIFrame != null)
347: previewIFrame.src = previewIFrame.src;
1.29 damieng 348: }, onError: (DaxeException ex) {
349: h.window.alert(Strings.get('save.error') + ': ' + ex.message);
350: });
351: };
1.43 damieng 352: // function to customize the toobar after its default creation
353: ActionFunction customizeToolbar = () {
354: ToolbarMenu sectionMenu = _makeSectionMenu();
355: if (sectionMenu != null)
356: page.toolbar.add(sectionMenu);
357: ToolbarBox mathBox;
358: if (doc.saveURL != null)
359: mathBox = page.toolbar.items[5];
360: else
361: mathBox = page.toolbar.items[4];
362: x.Element texRef = doc.cfg.elementReference('m');
363: if (texRef != null) {
364: ToolbarButton texButton = new ToolbarButton(
365: LCDStrings.get('insert_m'), 'images/tex.png',
366: () => doc.insertNewNode(texRef, 'element'), Toolbar.insertButtonUpdate,
367: data:new ToolbarStyleInfo([texRef], null, null));
368: mathBox.add(texButton);
369: }
370: x.Element lmRef = doc.cfg.elementReference('lm');
371: if (lmRef != null) {
372: ToolbarButton lmButton = new ToolbarButton(
373: LCDStrings.get('insert_lm'), 'packages/daxe/images/toolbar/equation.png',
374: () => doc.insertNewNode(lmRef, 'element'), Toolbar.insertButtonUpdate,
375: data:new ToolbarStyleInfo([lmRef], null, null));
376: mathBox.add(lmButton);
377: }
378: };
1.35 damieng 379: // Initialization
1.1 damieng 380: Future.wait([Strings.load(), LCDStrings.load(), _readTemplates('templates.xml')]).then((List responses) {
1.43 damieng 381: initDaxe(left:left, saveFunction:saveFunction,
382: customizeToolbar:customizeToolbar).then((v) {
1.35 damieng 383: // More customizations
384: _addGuttersAndPreview();
1.1 damieng 385: page.adjustPositionsUnderToolbar();
386: page.updateAfterPathChange();
387: // add things to the menubar
388: if (responses[2] is x.Document) {
389: // at this point the menubar html is already in the document, so we have to fix the HTML
390: h.Element menubarDiv = h.document.getElementsByClassName('menubar')[0];
391: Menu m = _makeTemplatesMenu(responses[2]);
1.34 damieng 392: if (m != null) {
1.26 damieng 393: page.mbar.add(m);
1.34 damieng 394: menubarDiv.append(page.mbar.createMenuDiv(m));
395: }
1.33 damieng 396: Menu helpMenu = _makeHelpMenu();
397: page.mbar.add(helpMenu);
398: menubarDiv.append(page.mbar.createMenuDiv(helpMenu));
1.1 damieng 399: page.updateAfterPathChange();
400: } else
401: print("Error reading templates file, could not build the menu.");
1.15 damieng 402: }).catchError((e) {
1.34 damieng 403: String msg = 'Initialization error: ' + (e is String ? e : e.toString());
404: print(msg);
405: h.document.body.appendText(msg);
1.1 damieng 406: });
1.15 damieng 407: }).catchError((e) {
1.34 damieng 408: String msg = 'Initialization error: ' + (e is String ? e : e.toString());
409: print(msg);
410: h.document.body.appendText(msg);
1.1 damieng 411: });
412: }
413:
1.35 damieng 414:
415: /**
416: * Adds a movable left gutter between the left panel and the document,
417: * a preview to the right and another gutter beween the document and the preview.
1.39 damieng 418: * Also hides the left panel initially.
1.35 damieng 419: */
420: void _addGuttersAndPreview() {
421: // NOTE: The preview is in an iframe within Daxe
422: // (so that it works like another LON-CAPA problem preview),
423: // and Daxe itself is in an iframe (so as to get the parameters from the URL).
424: // This makes handling mouse event a little more complicated: the preview iframe
425: // will consume events by default, and events outside the Daxe iframe are not
426: // always sent to the iframe when happening outside.
427: bool moving_left_gutter = false;
428: bool moving_right_gutter = false;
1.39 damieng 429: // hide left panel
430: h.Element left = h.document.getElementById('left_panel');
431: left.style.width ='0px';
432: left.style.visibility = 'hidden';
433: // add left gutter
1.35 damieng 434: h.DivElement leftGutter = new h.DivElement();
435: leftGutter.id = 'left_gutter';
436: leftGutter.classes.add('vertical-gutter');
1.39 damieng 437: leftGutter.style.left ='0px';
1.35 damieng 438: h.Element doc1 = h.document.getElementById('doc1');
439: h.document.body.insertBefore(leftGutter, doc1);
1.39 damieng 440: doc1.style.left = '10px';
1.35 damieng 441:
442: // preview and right gutter
443: h.DivElement previewDiv;
444: h.IFrameElement previewIFrame;
1.40 damieng 445: if (doc.filePath != null && doc.filePath.startsWith('/daxeopen')) {
1.35 damieng 446: previewDiv = new h.DivElement();
447: previewDiv.id = 'preview_div';
448: previewIFrame = new h.IFrameElement();
449: previewIFrame.src = doc.filePath.substring(9) + '?inhibitmenu=yes';
450: previewIFrame.id = 'preview_iframe';
451: int previewWidth = (doc1.offsetWidth / 3).round();
452: previewDiv.style.width = "${previewWidth}px";
453: previewDiv.append(previewIFrame);
454: h.DivElement rightGutter = new h.DivElement();
455: rightGutter.id = 'right_gutter';
456: rightGutter.classes.add('vertical-gutter');
457: rightGutter.style.right = "${previewWidth}px";
1.44 damieng 458: var right_mousedown = (h.Event event) {
1.35 damieng 459: moving_right_gutter = true;
460: event.preventDefault();
461: previewIFrame.style.pointerEvents = 'none';
1.44 damieng 462: };
463: rightGutter.onMouseDown.listen(right_mousedown);
464: rightGutter.onTouchStart.listen(right_mousedown);
1.35 damieng 465: h.document.body.append(rightGutter);
466: doc1.style.right = "${previewWidth + 10}px";
467: h.document.body.append(previewDiv);
468: }
469:
470: // mousedown on left gutter
1.44 damieng 471: var left_mousedown = (h.Event event) {
1.35 damieng 472: moving_left_gutter = true;
473: event.preventDefault();
474: if (previewIFrame != null)
475: previewIFrame.style.pointerEvents = 'none';
1.42 damieng 476: };
1.44 damieng 477: leftGutter.onMouseDown.listen(left_mousedown);
478: leftGutter.onTouchStart.listen(left_mousedown);
1.35 damieng 479:
480: // adjust top positions when the toolbar height changes
481: _adjustPositionsUnderToolbar();
482: h.window.onResize.listen((h.Event event) => _adjustPositionsUnderToolbar());
483:
484: // mousemove for both gutters
1.42 damieng 485: var mousemove = (h.Event event) {
1.35 damieng 486: if (!(moving_left_gutter || moving_right_gutter))
487: return;
488: h.Element left = h.document.getElementById('left_panel');
489: h.Element doc1 = h.document.getElementById('doc1');
1.42 damieng 490: num x;
491: if (event is h.MouseEvent)
492: x = event.client.x;
493: else if (event is h.TouchEvent)
494: x = event.changedTouches[0].client.x;
495: else
496: return;
1.35 damieng 497: x = x.round();
1.36 damieng 498: // for IE, temporary change of overflow for doc1,
499: // otherwise IE and Edge never report an empty width when there is a scrollbar
500: // (this slows things down, so it is done only for IE)
501: bool ie = h.window.navigator.appVersion.contains("Trident") || h.window.navigator.appVersion.contains("Edge");
502: if (ie)
503: doc1.style.overflow = 'hidden';
504: num doc1width = doc1.offsetWidth;
505: if (ie)
506: doc1.style.overflow = '';
1.35 damieng 507: if (moving_left_gutter) {
508: h.Element leftGutter = h.document.getElementById('left_gutter');
509: if (x < 5)
510: x = 5;
1.36 damieng 511: int maxX = left.offsetWidth + 5 + doc1width;
1.35 damieng 512: if (x > maxX)
513: x = maxX;
514: if (x == 5)
515: left.style.visibility = 'hidden';
1.36 damieng 516: else
517: left.style.visibility = '';
518: left.style.width = "${x-5}px";
1.35 damieng 519: leftGutter.style.left ="${x-5}px";
1.36 damieng 520: if (x == maxX)
521: doc1.style.visibility = 'hidden';
522: else
523: doc1.style.visibility = '';
1.35 damieng 524: doc1.style.left ="${x+5}px";
525: } else if (moving_right_gutter) {
526: h.Element previewDiv = h.document.getElementById('preview_div');
527: h.Element rightGutter = h.document.getElementById('right_gutter');
528: int minX = left.offsetWidth + 10 + 5;
529: if (x < minX)
530: x = minX;
1.36 damieng 531: int maxX = left.offsetWidth + 10 + doc1width + 5 + previewDiv.offsetWidth;
1.35 damieng 532: if (x > maxX)
533: x = maxX;
534: int previewWidth = maxX - x;
535: if (previewWidth == 0)
536: previewDiv.style.visibility = 'hidden';
1.36 damieng 537: else
538: previewDiv.style.visibility = '';
539: previewDiv.style.width = "${previewWidth}px";
1.35 damieng 540: rightGutter.style.right ="${previewWidth}px";
1.36 damieng 541: if (x == minX)
542: doc1.style.visibility = 'hidden';
543: else
544: doc1.style.visibility = '';
1.35 damieng 545: doc1.style.right ="${previewWidth + 10}px";
546: }
547: event.stopPropagation();
548: event.preventDefault();
1.42 damieng 549: };
550: h.document.onMouseMove.listen(mousemove);
551: h.document.onTouchMove.listen(mousemove);
1.35 damieng 552:
553: // mouseup
1.42 damieng 554: var mouseup = (h.Event event) {
1.35 damieng 555: if (moving_left_gutter || moving_right_gutter) {
1.42 damieng 556: event.preventDefault();
1.35 damieng 557: h.IFrameElement previewIFrame = h.document.getElementById('preview_iframe');
558: if (previewIFrame != null) {
559: // restore events on iframe
560: previewIFrame.style.pointerEvents = '';
561: }
562: moving_left_gutter = false;
563: moving_right_gutter = false;
564: }
565: };
566: h.document.onMouseUp.listen(mouseup);
1.42 damieng 567: h.document.onTouchEnd.listen(mouseup);
1.35 damieng 568: // if we are in an iframe, we need to use the parent to get
569: // mouseup events outside it with some browsers like Chromium
570: var parent = new js.JsObject.fromBrowserObject(js.context['window'])['parent'];
571: if (parent is h.Window) {
572: // happens with Dartium and Firefox
573: parent.onMouseUp.listen((h.MouseEvent event) => mouseup(event));
574: } else if (parent is js.JsObject) {
575: // happens with Chromium
576: parent.callMethod('addEventListener', ['mouseup', mouseup, false]);
577: }
578: }
579:
580: /*
581: * This complements WebPage.adjustPositionsUnderToolbar with positions for the gutters and preview.
582: */
583: void _adjustPositionsUnderToolbar() {
584: h.Element headers = h.document.getElementById('headers');
585: num y = headers.getBoundingClientRect().bottom;
586: String cssTop = (y.round() + 2).toString() + "px";
587: h.document.getElementById('left_gutter').style.top = cssTop;
588: h.DivElement rightGutter = h.document.getElementById('right_gutter');
589: if (rightGutter != null)
590: rightGutter.style.top = cssTop;
591: h.DivElement previewDiv = h.document.getElementById('preview_div');
592: if (previewDiv != null)
593: previewDiv.style.top = cssTop;
594: }
595:
596:
1.1 damieng 597: ToolbarMenu _makeSectionMenu() {
1.18 damieng 598: // sort section roles by title
599: knownSectionRoles.sort((String role1, String role2) => LCDStrings.get(role1).compareTo(LCDStrings.get(role2)));
600:
1.1 damieng 601: Menu menu = new Menu(LCDStrings.get('Section'));
602: List<x.Element> sectionRefs = doc.cfg.elementReferences('section');
603: if (sectionRefs == null || sectionRefs.length == 0)
604: return(null);
605: x.Element h1Ref = doc.cfg.elementReference('h1');
1.18 damieng 606: for (String role in knownSectionRoles) {
1.1 damieng 607: MenuItem menuItem = new MenuItem(LCDStrings.get(role), null,
608: data:new ToolbarStyleInfo(sectionRefs, null, null));
609: menuItem.action = () {
610: ToolbarStyleInfo info = menuItem.data;
611: x.Element sectionRef = info.validRef;
1.18 damieng 612: Section section = new Section.fromRef(sectionRef);
1.1 damieng 613: section.state = 1;
614: section.setAttribute('class', 'role-' + role);
1.17 damieng 615: H1 h1 = NodeFactory.create(h1Ref);
1.1 damieng 616: h1.state = 1;
1.18 damieng 617: h1.appendChild(new DNText(LCDStrings.get(role)));
1.9 damieng 618: section.appendChild(h1);
619: x.Element hiddenp = doc.cfg.findSubElement(sectionRef, doc.hiddenParaRefs);
1.18 damieng 620: DNHiddenP p = new DNHiddenP.fromRef(hiddenp);
1.9 damieng 621: section.appendChild(p);
1.17 damieng 622: section.setupSimpleUI();
1.1 damieng 623: if (doc.insert2(section, page.getSelectionStart())) {
1.18 damieng 624: page.cursor.moveTo(new Position(p, 0));
1.1 damieng 625: page.updateAfterPathChange();
626: }
627: };
628: menu.add(menuItem);
629: }
630: ToolbarMenu tbmenu = new ToolbarMenu(menu, Toolbar.insertMenuUpdate, page.toolbar);
631: return(tbmenu);
632: }
633:
1.35 damieng 634:
1.1 damieng 635: Future<x.Document> _readTemplates(String templatesPath) {
636: x.DOMParser dp = new x.DOMParser();
637: return(dp.parseFromURL(templatesPath));
638: }
639:
640: Menu _makeTemplatesMenu(x.Document templatesDoc) {
1.26 damieng 641: List<x.Element> problemRefs = doc.cfg.elementReferences('problem');
642: if (problemRefs == null || problemRefs.length == 0)
643: return(null);
1.1 damieng 644: Menu menu = new Menu(LCDStrings.get('Templates'));
645: x.Element templates = templatesDoc.documentElement;
646: for (x.Node child in templates.childNodes) {
647: if (child.nodeType == x.Node.ELEMENT_NODE && child.nodeName == 'menu') {
648: menu.add(_makeMenu(child));
649: }
650: }
651: return(menu);
652: }
653:
654: Menu _makeMenu(x.Element el) {
655: String locale = LCDStrings.systemLocale;
656: String defaultLocale = LCDStrings.defaultLocale;
657: String title;
658: for (x.Node child in el.childNodes) {
659: if (child.nodeType == x.Node.ELEMENT_NODE && child.nodeName == 'title') {
660: if (child.firstChild != null && child.firstChild.nodeType == x.Node.TEXT_NODE) {
661: if ((child as x.Element).getAttribute('lang') == locale) {
662: title = child.firstChild.nodeValue;
663: break;
664: } else if ((child as x.Element).getAttribute('lang') == defaultLocale) {
665: title = child.firstChild.nodeValue;
666: }
667: }
668: }
669: }
670: if (title == null)
671: title = '?';
672: Menu menu = new Menu(title);
673: for (x.Node child in el.childNodes) {
674: if (child.nodeType == x.Node.ELEMENT_NODE) {
675: if (child.nodeName == 'menu') {
676: menu.add(_makeMenu(child));
677: } else if (child.nodeName == 'item') {
678: menu.add(_makeItem(child));
679: }
680: }
681: }
682: return(menu);
683: }
684:
685: MenuItem _makeItem(x.Element item) {
686: String locale = LCDStrings.systemLocale;
687: String defaultLocale = LCDStrings.defaultLocale;
688: String path, type, title, help;
689: for (x.Node child in item.childNodes) {
690: if (child.nodeType == x.Node.ELEMENT_NODE) {
691: if (child.nodeName == 'title') {
692: if (child.firstChild != null && child.firstChild.nodeType == x.Node.TEXT_NODE) {
693: if ((child as x.Element).getAttribute('lang') == locale) {
694: title = child.firstChild.nodeValue;
695: } else if (title == null && (child as x.Element).getAttribute('lang') == defaultLocale) {
696: title = child.firstChild.nodeValue;
697: }
698: }
699: } else if (child.nodeName == 'path' && child.firstChild != null && child.firstChild.nodeType == x.Node.TEXT_NODE) {
700: path = child.firstChild.nodeValue;
701: } else if (child.nodeName == 'type' && child.firstChild != null && child.firstChild.nodeType == x.Node.TEXT_NODE) {
702: type = child.firstChild.nodeValue;
703: } else if (child.nodeName == 'help') {
704: if (child.firstChild != null && child.firstChild.nodeType == x.Node.TEXT_NODE) {
705: if ((child as x.Element).getAttribute('lang') == locale) {
706: help = child.firstChild.nodeValue;
707: } else if (help == null && (child as x.Element).getAttribute('lang') == defaultLocale) {
708: help = child.firstChild.nodeValue;
709: }
710: }
711: }
712: }
713: }
714: if (type == null) {
715: print("Warning: missing type for template $title\n");
716: type = 'problem';
717: }
718: x.Element refElement = doc.cfg.elementReference(type);
719: MenuItem menuItem = new MenuItem(title, () => _insertTemplate(path), data: refElement);
720: if (help != null)
721: menuItem.toolTipText = help;
722: return menuItem;
723: }
724:
725: void _insertTemplate(String filePath) {
726: try {
727: x.DOMParser dp = new x.DOMParser();
728: dp.parseFromURL(filePath).then((x.Document templateDoc) {
729: x.Element root = templateDoc.documentElement;
730: if (root == null)
731: return;
732: doc.removeWhitespace(root);
733: DaxeNode dnRoot = NodeFactory.createFromNode(root, null);
1.27 damieng 734: if (dnRoot is LCDBlock && dnRoot.attributes.length > 0)
735: dnRoot.state = 0; // make attributes editable for the template root
1.1 damieng 736: UndoableEdit edit;
737: Position pos = page.getSelectionStart();
738: if (dnRoot.nodeName == 'loncapa' && doc.getRootElement() != null)
739: edit = doc.insertChildrenEdit(dnRoot, pos, checkValidity:true);
1.12 damieng 740: else {
741: DaxeNode parent = pos.dn;
742: if (parent is DNText)
743: parent = parent.parent;
744: if (parent is DNHiddenP && !doc.cfg.isSubElement(parent.ref, dnRoot.ref)) {
745: // The node must be inserted outside of the paragraph.
746: // If there is something in the paragraph to the right of the cursor, it must be
747: // moved into a new paragraph after the inserted node.
748: // (as in DaxeDocument.insert2)
749: DNHiddenP p = parent;
750: edit = new UndoableEdit.compound(Strings.get('undo.insert_element'));
751: Position pend = new Position(p, p.offsetLength);
752: pend.moveInsideTextNodeIfPossible();
753: if (pos < pend) {
754: DaxeNode clone = doc.cloneBetween(pos, pend);
755: edit.addSubEdit(doc.removeBetweenEdit(pos, pend));
756: DNHiddenP newp = NodeFactory.create(p.ref);
757: edit.addSubEdit(new UndoableEdit.insertNode(
758: new Position(p.parent, p.parent.offsetOf(p) + 1), newp));
759: edit.addSubEdit(doc.insertChildrenEdit(clone, new Position(newp, 0)));
760: }
761: edit.addSubEdit(new UndoableEdit.insertNode(
762: new Position(p.parent, p.parent.offsetOf(p)+1), dnRoot));
763: } else
764: edit = new UndoableEdit.insertNode(pos, dnRoot);
765: }
1.1 damieng 766: doc.doNewEdit(edit);
767: page.updateAfterPathChange();
1.8 damieng 768: if (dnRoot.nodeName != 'loncapa')
769: page.scrollToNode(dnRoot);
1.1 damieng 770: });
771: } on x.DOMException catch(ex) {
772: h.window.alert(ex.toString());
773: }
774: }
1.33 damieng 775:
776: Menu _makeHelpMenu() {
777: Menu menu = new Menu(LCDStrings.get('help'));
1.38 damieng 778: menu.add(new MenuItem(LCDStrings.get('getting_started'),
779: () => h.window.open('tutorial/getting_started.xhtml', '_blank')));
780: menu.add(new MenuItem(LCDStrings.get('author_manual'),
781: () => h.window.open('/adm/help/author.manual.pdf', '_blank')));
1.41 damieng 782: menu.add(new MenuItem(LCDStrings.get('about_lcdaxe'),
783: () => (new AboutLCDaxeDlg()).show()));
1.33 damieng 784: return(menu);
785: }
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