Side by Side Diff: include.preload.js
Issue 29575739:
Issue 5864 - Remove previous style sheet before adding one (Closed)
Base URL: https://hg.adblockplus.org/adblockpluschrome/
Patch Set: Rebase
Created Oct. 18, 2017, 1:30 p.m.
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| 1 /* | 1 /* |
| 2 * This file is part of Adblock Plus <https://adblockplus.org/>, | 2 * This file is part of Adblock Plus <https://adblockplus.org/>, |
| 3 * Copyright (C) 2006-present eyeo GmbH | 3 * Copyright (C) 2006-present eyeo GmbH |
| 4 * | 4 * |
| 5 * Adblock Plus is free software: you can redistribute it and/or modify | 5 * Adblock Plus is free software: you can redistribute it and/or modify |
| 6 * it under the terms of the GNU General Public License version 3 as | 6 * it under the terms of the GNU General Public License version 3 as |
| 7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
| 8 * | 8 * |
| 9 * Adblock Plus is distributed in the hope that it will be useful, | 9 * Adblock Plus is distributed in the hope that it will be useful, |
| 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| (...skipping 324 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
| 335 { | 335 { |
| 336 document.removeEventListener("DOMContentLoaded", this.trace); | 336 document.removeEventListener("DOMContentLoaded", this.trace); |
| 337 this.observer.disconnect(); | 337 this.observer.disconnect(); |
| 338 clearTimeout(this.timeout); | 338 clearTimeout(this.timeout); |
| 339 } | 339 } |
| 340 }; | 340 }; |
| 341 | 341 |
| 342 function ElemHide() | 342 function ElemHide() |
| 343 { | 343 { |
| 344 this.shadow = this.createShadowTree(); | 344 this.shadow = this.createShadowTree(); |
| 345 this.style = null; | 345 this.styles = new Map(); |
| 346 this.tracer = null; | 346 this.tracer = null; |
| 347 this.inject = true; | 347 this.inline = true; |
| 348 this.emulatedPatterns = null; | 348 this.emulatedPatterns = null; |
| 349 | 349 |
| 350 this.elemHideEmulation = new ElemHideEmulation( | 350 this.elemHideEmulation = new ElemHideEmulation( |
| 351 this.addSelectors.bind(this), | 351 this.addSelectors.bind(this), |
| 352 this.hideElements.bind(this) | 352 this.hideElements.bind(this) |
| 353 ); | 353 ); |
| 354 } | 354 } |
| 355 ElemHide.prototype = { | 355 ElemHide.prototype = { |
| 356 selectorGroupSize: 200, | 356 selectorGroupSize: 200, |
| 357 | 357 |
| (...skipping 14 matching lines...) Expand all Loading... | |
| 372 // Finally since some users have both AdBlock and Adblock Plus installed we | 372 // Finally since some users have both AdBlock and Adblock Plus installed we |
| 373 // have to consider how the two extensions interact. For example we want to | 373 // have to consider how the two extensions interact. For example we want to |
| 374 // avoid creating the shadowRoot twice. | 374 // avoid creating the shadowRoot twice. |
| 375 let shadow = document.documentElement.shadowRoot || | 375 let shadow = document.documentElement.shadowRoot || |
| 376 document.documentElement.createShadowRoot(); | 376 document.documentElement.createShadowRoot(); |
| 377 shadow.appendChild(document.createElement("shadow")); | 377 shadow.appendChild(document.createElement("shadow")); |
| 378 | 378 |
| 379 return shadow; | 379 return shadow; |
| 380 }, | 380 }, |
| 381 | 381 |
| 382 injectSelectors(selectors, filters) | 382 addSelectorsInline(selectors, filters, groupName) |
| 383 { | 383 { |
| 384 if (!this.style) | 384 let style = this.styles.get(groupName); |
| 385 | |
| 386 if (style) | |
| 387 { | |
| 388 while (style.sheet.cssRules.length > 0) | |
| 389 style.sheet.deleteRule(0); | |
| 390 } | |
| 391 | |
| 392 if (selectors.length == 0) | |
| 393 return; | |
| 394 | |
| 395 if (!style) | |
| 385 { | 396 { |
| 386 // Create <style> element lazily, only if we add styles. Add it to | 397 // Create <style> element lazily, only if we add styles. Add it to |
| 387 // the shadow DOM if possible. Otherwise fallback to the <head> or | 398 // the shadow DOM if possible. Otherwise fallback to the <head> or |
| 388 // <html> element. If we have injected a style element before that | 399 // <html> element. If we have injected a style element before that |
| 389 // has been removed (the sheet property is null), create a new one. | 400 // has been removed (the sheet property is null), create a new one. |
| 390 this.style = document.createElement("style"); | 401 style = document.createElement("style"); |
| 391 (this.shadow || document.head || | 402 (this.shadow || document.head || |
| 392 document.documentElement).appendChild(this.style); | 403 document.documentElement).appendChild(style); |
| 393 | 404 |
| 394 // It can happen that the frame already navigated to a different | 405 // It can happen that the frame already navigated to a different |
| 395 // document while we were waiting for the background page to respond. | 406 // document while we were waiting for the background page to respond. |
| 396 // In that case the sheet property will stay null, after addind the | 407 // In that case the sheet property will stay null, after addind the |
| 397 // <style> element to the shadow DOM. | 408 // <style> element to the shadow DOM. |
| 398 if (!this.style.sheet) | 409 if (!style.sheet) |
| 399 return; | 410 return; |
| 411 | |
| 412 this.styles.set(groupName, style); | |
| 400 } | 413 } |
| 401 | 414 |
| 402 // If using shadow DOM, we have to add the ::content pseudo-element | 415 // If using shadow DOM, we have to add the ::content pseudo-element |
| 403 // before each selector, in order to match elements within the | 416 // before each selector, in order to match elements within the |
| 404 // insertion point. | 417 // insertion point. |
| 405 let preparedSelectors = []; | 418 let preparedSelectors = []; |
| 406 if (this.shadow) | 419 if (this.shadow) |
| 407 { | 420 { |
| 408 for (let selector of selectors) | 421 for (let selector of selectors) |
| 409 { | 422 { |
| (...skipping 17 matching lines...) Expand all Loading... | |
| 427 let selector = preparedSelectors.slice( | 440 let selector = preparedSelectors.slice( |
| 428 i, i + this.selectorGroupSize | 441 i, i + this.selectorGroupSize |
| 429 ).join(", "); | 442 ).join(", "); |
| 430 this.style.sheet.insertRule(selector + "{display: none !important;}", | 443 this.style.sheet.insertRule(selector + "{display: none !important;}", |
| 431 this.style.sheet.cssRules.length); | 444 this.style.sheet.cssRules.length); |
| 432 } | 445 } |
| 433 }, | 446 }, |
| 434 | 447 |
| 435 addSelectors(selectors, filters) | 448 addSelectors(selectors, filters) |
| 436 { | 449 { |
| 437 if (selectors.length == 0) | 450 if (this.inline) |
| 438 return; | |
| 439 | |
| 440 if (this.inject) | |
| 441 { | 451 { |
| 442 // Insert the style rules inline if we have been instructed by the | 452 // Insert the style rules inline if we have been instructed by the |
| 443 // background page to do so. This is usually the case, except on platforms | 453 // background page to do so. This is usually the case, except on platforms |
| 444 // that do support user stylesheets via the browser.tabs.insertCSS API | 454 // that do support user stylesheets via the browser.tabs.insertCSS API |
| 445 // (Firefox 53 onwards for now and possibly Chrome in the near future). | 455 // (Firefox 53 onwards for now and possibly Chrome in the near future). |
| 446 // Once all supported platforms have implemented this API, we can remove | 456 // Once all supported platforms have implemented this API, we can remove |
| 447 // the code below. See issue #5090. | 457 // the code below. See issue #5090. |
| 448 // Related Chrome and Firefox issues: | 458 // Related Chrome and Firefox issues: |
| 449 // https://bugs.chromium.org/p/chromium/issues/detail?id=632009 | 459 // https://bugs.chromium.org/p/chromium/issues/detail?id=632009 |
| 450 // https://bugzilla.mozilla.org/show_bug.cgi?id=1310026 | 460 // https://bugzilla.mozilla.org/show_bug.cgi?id=1310026 |
| 451 this.injectSelectors(selectors, filters); | 461 this.addSelectorsInline(selectors, filters, "emulated"); |
| 452 } | 462 } |
| 453 else | 463 else |
| 454 { | 464 { |
| 455 browser.runtime.sendMessage({ | 465 browser.runtime.sendMessage({ |
| 456 type: "elemhide.injectSelectors", | 466 type: "elemhide.injectSelectors", |
| 457 selectors | 467 selectors, |
| 468 groupName: "emulated" | |
| 458 }); | 469 }); |
| 459 } | 470 } |
| 460 | 471 |
| 461 if (this.tracer) | 472 if (this.tracer) |
| 462 this.tracer.addSelectors(selectors, filters); | 473 this.tracer.addSelectors(selectors, filters); |
| 463 }, | 474 }, |
| 464 | 475 |
| 465 hideElements(elements, filters) | 476 hideElements(elements, filters) |
| 466 { | 477 { |
| 467 for (let element of elements) | 478 for (let element of elements) |
| (...skipping 10 matching lines...) Expand all Loading... | |
| 478 }, | 489 }, |
| 479 | 490 |
| 480 apply() | 491 apply() |
| 481 { | 492 { |
| 482 browser.runtime.sendMessage({type: "elemhide.getSelectors"}, response => | 493 browser.runtime.sendMessage({type: "elemhide.getSelectors"}, response => |
| 483 { | 494 { |
| 484 if (this.tracer) | 495 if (this.tracer) |
| 485 this.tracer.disconnect(); | 496 this.tracer.disconnect(); |
| 486 this.tracer = null; | 497 this.tracer = null; |
| 487 | 498 |
| 488 if (this.style && this.style.parentElement) | |
| 489 this.style.parentElement.removeChild(this.style); | |
| 490 this.style = null; | |
| 491 | |
| 492 if (response.trace) | 499 if (response.trace) |
| 493 this.tracer = new ElementHidingTracer(); | 500 this.tracer = new ElementHidingTracer(); |
| 494 | 501 |
| 495 this.inject = response.inject; | 502 this.inline = response.inline; |
| 496 | 503 |
| 497 if (this.inject) | 504 if (this.inline) |
| 498 this.addSelectors(response.selectors); | 505 this.addSelectorsInline(response.selectors); |
| 499 else if (this.tracer) | 506 |
| 507 if (this.tracer) | |
| 500 this.tracer.addSelectors(response.selectors); | 508 this.tracer.addSelectors(response.selectors); |
| 501 | 509 |
| 502 this.elemHideEmulation.apply(response.emulatedPatterns); | 510 this.elemHideEmulation.apply(response.emulatedPatterns); |
| 503 }); | 511 }); |
| 504 } | 512 } |
| 505 }; | 513 }; |
| 506 | 514 |
| 507 if (document instanceof HTMLDocument) | 515 if (document instanceof HTMLDocument) |
| 508 { | 516 { |
| 509 checkSitekey(); | 517 checkSitekey(); |
| (...skipping 13 matching lines...) Expand all Loading... | |
| 523 checkCollapse(element); | 531 checkCollapse(element); |
| 524 }, true); | 532 }, true); |
| 525 } | 533 } |
| 526 | 534 |
| 527 module.exports = { | 535 module.exports = { |
| 528 checkCollapse, | 536 checkCollapse, |
| 529 elemhide, | 537 elemhide, |
| 530 typeMap, | 538 typeMap, |
| 531 getURLsFromElement | 539 getURLsFromElement |
| 532 }; | 540 }; |
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