text: /* Copyright 2017 Mozilla Foundation
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  'use strict';
  
  var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
  
  var FontInspector = function FontInspectorClosure() {
    var fonts;
    var active = false;
    var fontAttribute = 'data-font-name';
    function removeSelection() {
      var divs = document.querySelectorAll('div[' + fontAttribute + ']');
      for (var i = 0, ii = divs.length; i < ii; ++i) {
        var div = divs[i];
        div.className = '';
      }
    }
    function resetSelection() {
      var divs = document.querySelectorAll('div[' + fontAttribute + ']');
      for (var i = 0, ii = divs.length; i < ii; ++i) {
        var div = divs[i];
        div.className = 'debuggerHideText';
      }
    }
    function selectFont(fontName, show) {
      var divs = document.querySelectorAll('div[' + fontAttribute + '=' + fontName + ']');
      for (var i = 0, ii = divs.length; i < ii; ++i) {
        var div = divs[i];
        div.className = show ? 'debuggerShowText' : 'debuggerHideText';
      }
    }
    function textLayerClick(e) {
      if (!e.target.dataset.fontName || e.target.tagName.toUpperCase() !== 'DIV') {
        return;
      }
      var fontName = e.target.dataset.fontName;
      var selects = document.getElementsByTagName('input');
      for (var i = 0; i < selects.length; ++i) {
        var select = selects[i];
        if (select.dataset.fontName !== fontName) {
          continue;
        }
        select.checked = !select.checked;
        selectFont(fontName, select.checked);
        select.scrollIntoView();
      }
    }
    return {
      id: 'FontInspector',
      name: 'Font Inspector',
      panel: null,
      manager: null,
      init: function init(pdfjsLib) {
        var panel = this.panel;
        panel.setAttribute('style', 'padding: 5px;');
        var tmp = document.createElement('button');
        tmp.addEventListener('click', resetSelection);
        tmp.textContent = 'Refresh';
        panel.appendChild(tmp);
        fonts = document.createElement('div');
        panel.appendChild(fonts);
      },
      cleanup: function cleanup() {
        fonts.textContent = '';
      },
      enabled: false,
      get active() {
        return active;
      },
      set active(value) {
        active = value;
        if (active) {
          document.body.addEventListener('click', textLayerClick, true);
          resetSelection();
        } else {
          document.body.removeEventListener('click', textLayerClick, true);
          removeSelection();
        }
      },
      fontAdded: function fontAdded(fontObj, url) {
        function properties(obj, list) {
          var moreInfo = document.createElement('table');
          for (var i = 0; i < list.length; i++) {
            var tr = document.createElement('tr');
            var td1 = document.createElement('td');
            td1.textContent = list[i];
            tr.appendChild(td1);
            var td2 = document.createElement('td');
            td2.textContent = obj[list[i]].toString();
            tr.appendChild(td2);
            moreInfo.appendChild(tr);
          }
          return moreInfo;
        }
        var moreInfo = properties(fontObj, ['name', 'type']);
        var fontName = fontObj.loadedName;
        var font = document.createElement('div');
        var name = document.createElement('span');
        name.textContent = fontName;
        var download = document.createElement('a');
        if (url) {
          url = /url\(['"]?([^\)"']+)/.exec(url);
          download.href = url[1];
        } else if (fontObj.data) {
          url = URL.createObjectURL(new Blob([fontObj.data], { type: fontObj.mimeType }));
          download.href = url;
        }
        download.textContent = 'Download';
        var logIt = document.createElement('a');
        logIt.href = '';
        logIt.textContent = 'Log';
        logIt.addEventListener('click', function (event) {
          event.preventDefault();
          console.log(fontObj);
        });
        var select = document.createElement('input');
        select.setAttribute('type', 'checkbox');
        select.dataset.fontName = fontName;
        select.addEventListener('click', function (select, fontName) {
          return function () {
            selectFont(fontName, select.checked);
          };
        }(select, fontName));
        font.appendChild(select);
        font.appendChild(name);
        font.appendChild(document.createTextNode(' '));
        font.appendChild(download);
        font.appendChild(document.createTextNode(' '));
        font.appendChild(logIt);
        font.appendChild(moreInfo);
        fonts.appendChild(font);
        setTimeout(function () {
          if (this.active) {
            resetSelection();
          }
        }.bind(this), 2000);
      }
    };
  }();
  var opMap;
  var StepperManager = function StepperManagerClosure() {
    var steppers = [];
    var stepperDiv = null;
    var stepperControls = null;
    var stepperChooser = null;
    var breakPoints = Object.create(null);
    return {
      id: 'Stepper',
      name: 'Stepper',
      panel: null,
      manager: null,
      init: function init(pdfjsLib) {
        var self = this;
        this.panel.setAttribute('style', 'padding: 5px;');
        stepperControls = document.createElement('div');
        stepperChooser = document.createElement('select');
        stepperChooser.addEventListener('change', function (event) {
          self.selectStepper(this.value);
        });
        stepperControls.appendChild(stepperChooser);
        stepperDiv = document.createElement('div');
        this.panel.appendChild(stepperControls);
        this.panel.appendChild(stepperDiv);
        if (sessionStorage.getItem('pdfjsBreakPoints')) {
          breakPoints = JSON.parse(sessionStorage.getItem('pdfjsBreakPoints'));
        }
        opMap = Object.create(null);
        for (var key in pdfjsLib.OPS) {
          opMap[pdfjsLib.OPS[key]] = key;
        }
      },
      cleanup: function cleanup() {
        stepperChooser.textContent = '';
        stepperDiv.textContent = '';
        steppers = [];
      },
      enabled: false,
      active: false,
      create: function create(pageIndex) {
        var debug = document.createElement('div');
        debug.id = 'stepper' + pageIndex;
        debug.setAttribute('hidden', true);
        debug.className = 'stepper';
        stepperDiv.appendChild(debug);
        var b = document.createElement('option');
        b.textContent = 'Page ' + (pageIndex + 1);
        b.value = pageIndex;
        stepperChooser.appendChild(b);
        var initBreakPoints = breakPoints[pageIndex] || [];
        var stepper = new Stepper(debug, pageIndex, initBreakPoints);
        steppers.push(stepper);
        if (steppers.length === 1) {
          this.selectStepper(pageIndex, false);
        }
        return stepper;
      },
      selectStepper: function selectStepper(pageIndex, selectPanel) {
        var i;
        pageIndex = pageIndex | 0;
        if (selectPanel) {
          this.manager.selectPanel(this);
        }
        for (i = 0; i < steppers.length; ++i) {
          var stepper = steppers[i];
          if (stepper.pageIndex === pageIndex) {
            stepper.panel.removeAttribute('hidden');
          } else {
            stepper.panel.setAttribute('hidden', true);
          }
        }
        var options = stepperChooser.options;
        for (i = 0; i < options.length; ++i) {
          var option = options[i];
          option.selected = (option.value | 0) === pageIndex;
        }
      },
      saveBreakPoints: function saveBreakPoints(pageIndex, bps) {
        breakPoints[pageIndex] = bps;
        sessionStorage.setItem('pdfjsBreakPoints', JSON.stringify(breakPoints));
      }
    };
  }();
  var Stepper = function StepperClosure() {
    function c(tag, textContent) {
      var d = document.createElement(tag);
      if (textContent) {
        d.textContent = textContent;
      }
      return d;
    }
    function simplifyArgs(args) {
      if (typeof args === 'string') {
        var MAX_STRING_LENGTH = 75;
        return args.length <= MAX_STRING_LENGTH ? args : args.substr(0, MAX_STRING_LENGTH) + '...';
      }
      if ((typeof args === 'undefined' ? 'undefined' : _typeof(args)) !== 'object' || args === null) {
        return args;
      }
      if ('length' in args) {
        var simpleArgs = [],
            i,
            ii;
        var MAX_ITEMS = 10;
        for (i = 0, ii = Math.min(MAX_ITEMS, args.length); i < ii; i++) {
          simpleArgs.push(simplifyArgs(args[i]));
        }
        if (i < args.length) {
          simpleArgs.push('...');
        }
        return simpleArgs;
      }
      var simpleObj = {};
      for (var key in args) {
        simpleObj[key] = simplifyArgs(args[key]);
      }
      return simpleObj;
    }
    function Stepper(panel, pageIndex, initialBreakPoints) {
      this.panel = panel;
      this.breakPoint = 0;
      this.nextBreakPoint = null;
      this.pageIndex = pageIndex;
      this.breakPoints = initialBreakPoints;
      this.currentIdx = -1;
      this.operatorListIdx = 0;
    }
    Stepper.prototype = {
      init: function init(operatorList) {
        var panel = this.panel;
        var content = c('div', 'c=continue, s=step');
        var table = c('table');
        content.appendChild(table);
        table.cellSpacing = 0;
        var headerRow = c('tr');
        table.appendChild(headerRow);
        headerRow.appendChild(c('th', 'Break'));
        headerRow.appendChild(c('th', 'Idx'));
        headerRow.appendChild(c('th', 'fn'));
        headerRow.appendChild(c('th', 'args'));
        panel.appendChild(content);
        this.table = table;
        this.updateOperatorList(operatorList);
      },
      updateOperatorList: function updateOperatorList(operatorList) {
        var self = this;
        function cboxOnClick() {
          var x = +this.dataset.idx;
          if (this.checked) {
            self.breakPoints.push(x);
          } else {
            self.breakPoints.splice(self.breakPoints.indexOf(x), 1);
          }
          StepperManager.saveBreakPoints(self.pageIndex, self.breakPoints);
        }
        var MAX_OPERATORS_COUNT = 15000;
        if (this.operatorListIdx > MAX_OPERATORS_COUNT) {
          return;
        }
        var chunk = document.createDocumentFragment();
        var operatorsToDisplay = Math.min(MAX_OPERATORS_COUNT, operatorList.fnArray.length);
        for (var i = this.operatorListIdx; i < operatorsToDisplay; i++) {
          var line = c('tr');
          line.className = 'line';
          line.dataset.idx = i;
          chunk.appendChild(line);
          var checked = this.breakPoints.indexOf(i) !== -1;
          var args = operatorList.argsArray[i] || [];
          var breakCell = c('td');
          var cbox = c('input');
          cbox.type = 'checkbox';
          cbox.className = 'points';
          cbox.checked = checked;
          cbox.dataset.idx = i;
          cbox.onclick = cboxOnClick;
          breakCell.appendChild(cbox);
          line.appendChild(breakCell);
          line.appendChild(c('td', i.toString()));
          var fn = opMap[operatorList.fnArray[i]];
          var decArgs = args;
          if (fn === 'showText') {
            var glyphs = args[0];
            var newArgs = [];
            var str = [];
            for (var j = 0; j < glyphs.length; j++) {
              var glyph = glyphs[j];
              if ((typeof glyph === 'undefined' ? 'undefined' : _typeof(glyph)) === 'object' && glyph !== null) {
                str.push(glyph.fontChar);
              } else {
                if (str.length > 0) {
                  newArgs.push(str.join(''));
                  str = [];
                }
                newArgs.push(glyph);
              }
            }
            if (str.length > 0) {
              newArgs.push(str.join(''));
            }
            decArgs = [newArgs];
          }
          line.appendChild(c('td', fn));
          line.appendChild(c('td', JSON.stringify(simplifyArgs(decArgs))));
        }
        if (operatorsToDisplay < operatorList.fnArray.length) {
          line = c('tr');
          var lastCell = c('td', '...');
          lastCell.colspan = 4;
          chunk.appendChild(lastCell);
        }
        this.operatorListIdx = operatorList.fnArray.length;
        this.table.appendChild(chunk);
      },
      getNextBreakPoint: function getNextBreakPoint() {
        this.breakPoints.sort(function (a, b) {
          return a - b;
        });
        for (var i = 0; i < this.breakPoints.length; i++) {
          if (this.breakPoints[i] > this.currentIdx) {
            return this.breakPoints[i];
          }
        }
        return null;
      },
      breakIt: function breakIt(idx, callback) {
        StepperManager.selectStepper(this.pageIndex, true);
        var self = this;
        var dom = document;
        self.currentIdx = idx;
        var listener = function listener(e) {
          switch (e.keyCode) {
            case 83:
              dom.removeEventListener('keydown', listener);
              self.nextBreakPoint = self.currentIdx + 1;
              self.goTo(-1);
              callback();
              break;
            case 67:
              dom.removeEventListener('keydown', listener);
              var breakPoint = self.getNextBreakPoint();
              self.nextBreakPoint = breakPoint;
              self.goTo(-1);
              callback();
              break;
          }
        };
        dom.addEventListener('keydown', listener);
        self.goTo(idx);
      },
      goTo: function goTo(idx) {
        var allRows = this.panel.getElementsByClassName('line');
        for (var x = 0, xx = allRows.length; x < xx; ++x) {
          var row = allRows[x];
          if ((row.dataset.idx | 0) === idx) {
            row.style.backgroundColor = 'rgb(251,250,207)';
            row.scrollIntoView();
          } else {
            row.style.backgroundColor = null;
          }
        }
      }
    };
    return Stepper;
  }();
  var Stats = function Stats() {
    var stats = [];
    function clear(node) {
      while (node.hasChildNodes()) {
        node.removeChild(node.lastChild);
      }
    }
    function getStatIndex(pageNumber) {
      for (var i = 0, ii = stats.length; i < ii; ++i) {
        if (stats[i].pageNumber === pageNumber) {
          return i;
        }
      }
      return false;
    }
    return {
      id: 'Stats',
      name: 'Stats',
      panel: null,
      manager: null,
      init: function init(pdfjsLib) {
        this.panel.setAttribute('style', 'padding: 5px;');
        pdfjsLib.PDFJS.enableStats = true;
      },
      enabled: false,
      active: false,
      add: function add(pageNumber, stat) {
        if (!stat) {
          return;
        }
        var statsIndex = getStatIndex(pageNumber);
        if (statsIndex !== false) {
          var b = stats[statsIndex];
          this.panel.removeChild(b.div);
          stats.splice(statsIndex, 1);
        }
        var wrapper = document.createElement('div');
        wrapper.className = 'stats';
        var title = document.createElement('div');
        title.className = 'title';
        title.textContent = 'Page: ' + pageNumber;
        var statsDiv = document.createElement('div');
        statsDiv.textContent = stat.toString();
        wrapper.appendChild(title);
        wrapper.appendChild(statsDiv);
        stats.push({
          pageNumber: pageNumber,
          div: wrapper
        });
        stats.sort(function (a, b) {
          return a.pageNumber - b.pageNumber;
        });
        clear(this.panel);
        for (var i = 0, ii = stats.length; i < ii; ++i) {
          this.panel.appendChild(stats[i].div);
        }
      },
      cleanup: function cleanup() {
        stats = [];
        clear(this.panel);
      }
    };
  }();
  window.PDFBug = function PDFBugClosure() {
    var panelWidth = 300;
    var buttons = [];
    var activePanel = null;
    return {
      tools: [FontInspector, StepperManager, Stats],
      enable: function enable(ids) {
        var all = false,
            tools = this.tools;
        if (ids.length === 1 && ids[0] === 'all') {
          all = true;
        }
        for (var i = 0; i < tools.length; ++i) {
          var tool = tools[i];
          if (all || ids.indexOf(tool.id) !== -1) {
            tool.enabled = true;
          }
        }
        if (!all) {
          tools.sort(function (a, b) {
            var indexA = ids.indexOf(a.id);
            indexA = indexA < 0 ? tools.length : indexA;
            var indexB = ids.indexOf(b.id);
            indexB = indexB < 0 ? tools.length : indexB;
            return indexA - indexB;
          });
        }
      },
      init: function init(pdfjsLib, container) {
        var ui = document.createElement('div');
        ui.id = 'PDFBug';
        var controls = document.createElement('div');
        controls.setAttribute('class', 'controls');
        ui.appendChild(controls);
        var panels = document.createElement('div');
        panels.setAttribute('class', 'panels');
        ui.appendChild(panels);
        container.appendChild(ui);
        container.style.right = panelWidth + 'px';
        var tools = this.tools;
        var self = this;
        for (var i = 0; i < tools.length; ++i) {
          var tool = tools[i];
          var panel = document.createElement('div');
          var panelButton = document.createElement('button');
          panelButton.textContent = tool.name;
          panelButton.addEventListener('click', function (selected) {
            return function (event) {
              event.preventDefault();
              self.selectPanel(selected);
            };
          }(i));
          controls.appendChild(panelButton);
          panels.appendChild(panel);
          tool.panel = panel;
          tool.manager = this;
          if (tool.enabled) {
            tool.init(pdfjsLib);
          } else {
            panel.textContent = tool.name + ' is disabled. To enable add ' + ' "' + tool.id + '" to the pdfBug parameter ' + 'and refresh (separate multiple by commas).';
          }
          buttons.push(panelButton);
        }
        this.selectPanel(0);
      },
      cleanup: function cleanup() {
        for (var i = 0, ii = this.tools.length; i < ii; i++) {
          if (this.tools[i].enabled) {
            this.tools[i].cleanup();
          }
        }
      },
      selectPanel: function selectPanel(index) {
        if (typeof index !== 'number') {
          index = this.tools.indexOf(index);
        }
        if (index === activePanel) {
          return;
        }
        activePanel = index;
        var tools = this.tools;
        for (var j = 0; j < tools.length; ++j) {
          if (j === index) {
            buttons[j].setAttribute('class', 'active');
            tools[j].active = true;
            tools[j].panel.removeAttribute('hidden');
          } else {
            buttons[j].setAttribute('class', '');
            tools[j].active = false;
            tools[j].panel.setAttribute('hidden', 'true');
          }
        }
      }
    };
  }();