The Tor Browser: browser/devtools/sourceeditor/debugger.js@6474c204b198 (annotated)

browser/devtools/sourceeditor/debugger.js@6474c204b198 (annotated)

browser/devtools/sourceeditor/debugger.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
  "use strict";
 const dbginfo = new WeakMap();
 // These functions implement search within the debugger. Since
 // search in the debugger is different from other components,
 // we can't use search.js CodeMirror addon. This is a slightly
 // modified version of that addon. Depends on searchcursor.js.
 function SearchState() {
   this.posFrom = this.posTo = this.query = null;
 }
 function getSearchState(cm) {
   return cm.state.search || (cm.state.search = new SearchState());
 }
 function getSearchCursor(cm, query, pos) {
   // If the query string is all lowercase, do a case insensitive search.
   return cm.getSearchCursor(query, pos,
     typeof query == "string" && query == query.toLowerCase());
 }
 /**
  * If there's a saved search, selects the next results.
  * Otherwise, creates a new search and selects the first
  * result.
  */
 function doSearch(ctx, rev, query) {
   let { cm } = ctx;
   let state = getSearchState(cm);
   if (state.query) {
     searchNext(ctx, rev);
     return;
   }
   cm.operation(function () {
     if (state.query) return;
     state.query = query;
     state.posFrom = state.posTo = { line: 0, ch: 0 };
     searchNext(ctx, rev);
   });
 }
 /**
  * Selects the next result of a saved search.
  */
 function searchNext(ctx, rev) {
   let { cm, ed } = ctx;
   cm.operation(function () {
     let state = getSearchState(cm)
     let cursor = getSearchCursor(cm, state.query, rev ? state.posFrom : state.posTo);
     if (!cursor.find(rev)) {
       cursor = getSearchCursor(cm, state.query, rev ?
         { line: cm.lastLine(), ch: null } : { line: cm.firstLine(), ch: 0 });
       if (!cursor.find(rev))
         return;
     }
     ed.alignLine(cursor.from().line, "center");
     cm.setSelection(cursor.from(), cursor.to());
     state.posFrom = cursor.from();
     state.posTo = cursor.to();
   });
 }
 /**
  * Clears the currently saved search.
  */
 function clearSearch(cm) {
   let state = getSearchState(cm);
   if (!state.query)
     return;
   state.query = null;
 }
 // Exported functions
 /**
  * This function is called whenever Editor is extended with functions
  * from this module. See Editor.extend for more info.
  */
 function initialize(ctx) {
   let { ed } = ctx;
   dbginfo.set(ed, {
     breakpoints:   {},
     debugLocation: null
   });
 }
 /**
  * True if editor has a visual breakpoint at that line, false
  * otherwise.
  */
 function hasBreakpoint(ctx, line) {
   let { cm } = ctx;
   let markers = cm.lineInfo(line).gutterMarkers;
   return markers != null &&
     markers.breakpoints.classList.contains("breakpoint");
 }
 /**
  * Adds a visual breakpoint for a specified line. Third
  * parameter 'cond' can hold any object.
  *
  * After adding a breakpoint, this function makes Editor to
  * emit a breakpointAdded event.
  */
 function addBreakpoint(ctx, line, cond) {
   if (hasBreakpoint(ctx, line))
     return;
   let { ed, cm } = ctx;
   let meta = dbginfo.get(ed);
   let info = cm.lineInfo(line);
   ed.addMarker(line, "breakpoints", "breakpoint");
   meta.breakpoints[line] = { condition: cond };
   info.handle.on("delete", function onDelete() {
     info.handle.off("delete", onDelete);
     meta.breakpoints[info.line] = null;
   });
   ed.emit("breakpointAdded", line);
 }
 /**
  * Removes a visual breakpoint from a specified line and
  * makes Editor to emit a breakpointRemoved event.
  */
 function removeBreakpoint(ctx, line) {
   if (!hasBreakpoint(ctx, line))
     return;
   let { ed, cm } = ctx;
   let meta = dbginfo.get(ed);
   let info = cm.lineInfo(line);
   meta.breakpoints[info.line] = null;
   ed.removeMarker(info.line, "breakpoints", "breakpoint");
   ed.emit("breakpointRemoved", line);
 }
 /**
  * Returns a list of all breakpoints in the current Editor.
  */
 function getBreakpoints(ctx) {
   let { ed } = ctx;
   let meta = dbginfo.get(ed);
   return Object.keys(meta.breakpoints).reduce((acc, line) => {
     if (meta.breakpoints[line] != null)
       acc.push({ line: line, condition: meta.breakpoints[line].condition });
     return acc;
   }, []);
 }
 /**
  * Saves a debug location information and adds a visual anchor to
  * the breakpoints gutter. This is used by the debugger UI to
  * display the line on which the Debugger is currently paused.
  */
 function setDebugLocation(ctx, line) {
   let { ed } = ctx;
   let meta = dbginfo.get(ed);
   clearDebugLocation(ctx);
   meta.debugLocation = line;
   ed.addMarker(line, "breakpoints", "debugLocation");
   ed.addLineClass(line, "debug-line");
 }
 /**
  * Returns a line number that corresponds to the current debug
  * location.
  */
 function getDebugLocation(ctx) {
   let { ed } = ctx;
   let meta = dbginfo.get(ed);
   return meta.debugLocation;
 }
 /**
  * Clears the debug location. Clearing the debug location
  * also removes a visual anchor from the breakpoints gutter.
  */
 function clearDebugLocation(ctx) {
   let { ed } = ctx;
   let meta = dbginfo.get(ed);
   if (meta.debugLocation != null) {
     ed.removeMarker(meta.debugLocation, "breakpoints", "debugLocation");
     ed.removeLineClass(meta.debugLocation, "debug-line");
     meta.debugLocation = null;
   }
 }
 /**
  * Starts a new search.
  */
 function find(ctx, query) {
   clearSearch(ctx.cm);
   doSearch(ctx, false, query);
 }
 /**
  * Finds the next item based on the currently saved search.
  */
 function findNext(ctx, query) {
   doSearch(ctx, false, query);
 }
 /**
  * Finds the previous item based on the currently saved search.
  */
 function findPrev(ctx, query) {
   doSearch(ctx, true, query);
 }
 // Export functions
 [
   initialize, hasBreakpoint, addBreakpoint, removeBreakpoint,
   getBreakpoints, setDebugLocation, getDebugLocation,
   clearDebugLocation, find, findNext, findPrev
 ].forEach(function (func) { module.exports[func.name] = func; });