-/* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (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.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is KaiRo.at Mandelbrot, XULRunner version.
- *
- * The Initial Developer of the Original Code is
- * Robert Kaiser <kairo@kairo.at>.
- * Portions created by the Initial Developer are Copyright (C) 2008-210
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * Robert Kaiser <kairo@kairo.at>
- * Boris Zbarsky <bzbarsky@mit.edu>
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
+/* 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/. */
+// Get the best-available indexedDB object.
+window.indexedDB = window.indexedDB || window.webkitIndexedDB || window.mozIndexedDB || window.msIndexedDB;
+var mainDB;
+
+var gDebug = false;
+var gAction, gActionLabel;
+var gMainCanvas, gMainContext;
var gColorPalette = [];
var gStartTime = 0;
+var gCurrentImageData;
+var gLastImageData;
-function drawImage() {
- var canvas = document.getElementById("mbrotImage");
- var context = canvas.getContext("2d");
+function Startup() {
+ gAction = document.getElementById("action");
+ gActionLabel = document.getElementById("actionlabel");
+ gAction.addEventListener("dbinit-done", initPrefs, false);
+ initDB();
- document.getElementById("calcTime").textContent = "--";
+ gMainCanvas = document.getElementById("mbrotImage");
+ gMainContext = gMainCanvas.getContext("2d");
- gColorPalette = getColorPalette(document.getElementById("palette").value);
+ gMainCanvas.addEventListener("mouseup", imgEvHandler, false);
+ gMainCanvas.addEventListener("mousedown", imgEvHandler, false);
+ gMainCanvas.addEventListener("mousemove", imgEvHandler, false);
+ gMainCanvas.addEventListener("touchstart", imgEvHandler, false);
+ gMainCanvas.addEventListener("touchend", imgEvHandler, false);
+ gMainCanvas.addEventListener("touchcancel", imgEvHandler, false);
+ gMainCanvas.addEventListener("touchleave", imgEvHandler, false);
+ gMainCanvas.addEventListener("touchmove", imgEvHandler, false);
+
+ var initTile = new Image();
+ initTile.src = "style/initial-overview.png";
+ initTile.onload = function() { gMainContext.drawImage(initTile, 0, 0); };
+}
+
+function initDB() {
+ // Open DB.
+ var request = window.indexedDB.open("MainDB-mandelbrot", 1);
+ request.onerror = function(event) {
+ // Errors can be handled here. Error codes explain in:
+ // https://developer.mozilla.org/en/IndexedDB/IDBDatabaseException#Constants
+ if (gDebug)
+ console.log("error opening mainDB: " + event.target.errorCode);
+ };
+ request.onsuccess = function(event) {
+ //document.getElementById("debug").textContent = "mainDB opened.";
+ mainDB = request.result;
+ var throwEv = new CustomEvent("dbinit-done");
+ gAction.dispatchEvent(throwEv);
+ };
+ request.onupgradeneeded = function(event) {
+ mainDB = request.result;
+ var ver = mainDB.version || 0; // version is empty string for a new DB
+ if (gDebug)
+ console.log("mainDB has version " + ver + ", upgrade needed.");
+ if (!mainDB.objectStoreNames.contains("prefs")) {
+ // Create a "prefs" objectStore.
+ var prefsStore = mainDB.createObjectStore("prefs");
+ }
+ if (!mainDB.objectStoreNames.contains("bookmarks")) {
+ // Create a "bookmarks" objectStore.
+ var prefsStore = mainDB.createObjectStore("bookmarks");
+ }
+ mainDB.onversionchange = function(event) {
+ mainDB.close();
+ mainDB = undefined;
+ initDB();
+ };
+ };
+}
+
+function initPrefs() {
+ if (gDebug)
+ console.log("initializing prefs...");
+ gSyncPrefs.init(function () {
+ // Update the various settings fields to values from prefs.
+ if (gSyncPrefs.get("image.width"))
+ document.getElementById("image_width").value = gSyncPrefs.get("image.width");
+ if (gSyncPrefs.get("image.height"))
+ document.getElementById("image_height").value = gSyncPrefs.get("image.height");
+ if (gSyncPrefs.get("Cr_min"))
+ document.getElementById("Cr_min").value = gSyncPrefs.get("Cr_min");
+ if (gSyncPrefs.get("Cr_max"))
+ document.getElementById("Cr_max").value = gSyncPrefs.get("Cr_max");
+ if (gSyncPrefs.get("Ci_min"))
+ document.getElementById("Ci_min").value = gSyncPrefs.get("Ci_min");
+ if (gSyncPrefs.get("Ci_max"))
+ document.getElementById("Ci_max").value = gSyncPrefs.get("Ci_max");
+ if (gSyncPrefs.get("iteration_max"))
+ document.getElementById("iterMax").value = gSyncPrefs.get("iteration_max");
+ if (gSyncPrefs.get("color_palette"))
+ document.getElementById("palette").value = gSyncPrefs.get("color_palette");
+ if (gSyncPrefs.get("syncProportions") === true || gSyncPrefs.get("syncProportions") === false)
+ document.getElementById("proportional").checked = gSyncPrefs.get("syncProportions");
+ if (gSyncPrefs.get("use_algorithm"))
+ document.getElementById("algorithm").value = gSyncPrefs.get("use_algorithm");
+ if (gDebug)
+ console.log("prefs loaded.");
+ });
+}
+
+function getAdjustVal(aName) {
+ var value;
+ switch (aName) {
+ case "image.width":
+ case "image.height":
+ value = 0;
+ try {
+ value = document.getElementById(aName.replace(".", "_")).value;
+ }
+ catch (e) { }
+ if (!value || (value < 10) || (value > 5000)) {
+ value = 300;
+ gSyncPrefs.set(aName, value);
+ document.getElementById(aName.replace(".", "_")).value = value;
+ }
+ return value;
+ case "last_image.Cr_*":
+ var Cr_min = -2.0;
+ var Cr_max = 1.0;
+ try {
+ Cr_min = parseFloat(document.getElementById("Cr_min").value);
+ Cr_max = parseFloat(document.getElementById("Cr_max").value);
+ }
+ catch (e) { }
+ if ((Cr_min < -3) || (Cr_min > 2) ||
+ (Cr_max < -3) || (Cr_max > 2) || (Cr_min >= Cr_max)) {
+ Cr_min = -2.0; Cr_max = 1.0;
+ }
+ gSyncPrefs.set("Cr_min", Cr_min);
+ gSyncPrefs.set("Cr_max", Cr_max);
+ document.getElementById("Cr_min").value = Cr_min;
+ document.getElementById("Cr_max").value = Cr_max;
+ document.getElementById("Cr_scale").value = Cr_max - Cr_min;
+ return {Cr_min: Cr_min, Cr_max: Cr_max};
+ case "last_image.Ci_*":
+ var Ci_min = -1.5;
+ var Ci_max = 1.5;
+ try {
+ Ci_min = parseFloat(document.getElementById("Ci_min").value);
+ Ci_max = parseFloat(document.getElementById("Ci_max").value);
+ }
+ catch (e) { }
+ if ((Ci_min < -2.5) || (Ci_min > 2.5) ||
+ (Ci_max < -2.5) || (Ci_max > 2.5) || (Ci_min >= Ci_max)) {
+ Ci_min = -1.5; Ci_max = 1.5;
+ }
+ gSyncPrefs.set("Ci_min", Ci_min);
+ gSyncPrefs.set("Ci_max", Ci_max);
+ document.getElementById("Ci_min").value = Ci_min;
+ document.getElementById("Ci_max").value = Ci_max;
+ document.getElementById("Ci_scale").value = Ci_max - Ci_min;
+ return {Ci_min: Ci_min, Ci_max: Ci_max};
+ case "iteration_max":
+ value = 500;
+ try {
+ value = document.getElementById("iterMax").value;
+ }
+ catch (e) {
+ setIter(value);
+ }
+ if (value < 10 || value > 10000) {
+ value = 500;
+ setIter(value);
+ }
+ return value;
+ case "use_algorithm":
+ value = "numeric";
+ try {
+ value = document.getElementById("algorithm").value;
+ }
+ catch (e) {
+ setAlgorithm(value);
+ }
+ return value;
+ case "color_palette":
+ value = "kairo";
+ try {
+ value = document.getElementById("palette").value;
+ }
+ catch(e) {
+ setPalette(value);
+ }
+ return value;
+ case "syncProportions":
+ value = true;
+ try {
+ value = document.getElementById("proportional").value;
+ }
+ catch(e) {
+ gSyncPrefs.set(prefname, value);
+ document.getElementById("proportional").value = value;
+ }
+ return value;
+ default:
+ return false;
+ }
+}
+
+function setVal(aName, aValue) {
+ switch (aName) {
+ case "image.width":
+ case "image.height":
+ gSyncPrefs.set(aName, aValue);
+ document.getElementById(aName.replace(".", "_")).value = aValue;
+ break;
+ case "last_image.Cr_*":
+ gSyncPrefs.set("Cr_min", aValue.Cr_min);
+ gSyncPrefs.set("Cr_max", aValue.Cr_max);
+ document.getElementById("Cr_min").value = aValue.Cr_min;
+ document.getElementById("Cr_max").value = aValue.Cr_max;
+ break;
+ case "last_image.Ci_*":
+ gSyncPrefs.set("Ci_min", aValue.Ci_min);
+ gSyncPrefs.set("Ci_max", aValue.Ci_max);
+ document.getElementById("Ci_min").value = aValue.Ci_min;
+ document.getElementById("Ci_max").value = aValue.Ci_max;
+ break;
+ case "iteration_max":
+ setIter(aValue);
+ break;
+ case "use_algorithm":
+ setAlgorithm(aValue);
+ break;
+ case "color_palette":
+ setPalette(aValue);
+ break;
+ case "syncProportions":
+ gSyncPrefs.set(aName, aValue);
+ document.getElementById("proportional").value = aValue;
+ break;
+ }
+}
- var Cr_min = -2.0;
- var Cr_max = 1.0;
- try {
- Cr_min = parseFloat(document.getElementById("Cr_min").value);
- Cr_max = parseFloat(document.getElementById("Cr_max").value);
+function checkISValue(textbox, type) {
+ if (type == "coord") {
+ textbox.value = roundCoord(parseFloat(textbox.value));
}
- catch (e) { }
- if ((Cr_min < -2) || (Cr_min > 2) ||
- (Cr_max < -2) || (Cr_max > 2) || (Cr_min >= Cr_max)) {
- Cr_min = -2.0; Cr_max = 1.0;
+ else if (type == "dim") {
+ textbox.value = parseInt(textbox.value);
+ if (textbox.id == "image_width")
+ gSyncPrefs.set("image.width", textbox.value);
+ if (textbox.id == "image_height")
+ gSyncPrefs.set("image.height", textbox.value);
}
- document.getElementById("Cr_min").value = Cr_min;
- document.getElementById("Cr_max").value = Cr_max;
-
- var Ci_min = -1.5;
- var Ci_max = 1.5;
- try {
- Ci_min = parseFloat(document.getElementById("Ci_min").value);
- Ci_max = parseFloat(document.getElementById("Ci_max").value);
+}
+
+function recalcCoord(coord, target) {
+ var othercoord = (coord == "Ci") ? "Cr" : "Ci";
+ var owndim = (coord == "Ci") ? "height" : "width";
+ var otherdim = (coord == "Ci") ? "width" : "height";
+ var myscale;
+ if (target == "scale") {
+ myscale =
+ parseFloat(document.getElementById(coord + "_max").value) -
+ parseFloat(document.getElementById(coord + "_min").value);
+ document.getElementById(coord + "_scale").value = roundCoord(myscale);
}
- catch (e) { }
- if ((Ci_min < -2) || (Ci_min > 2) ||
- (Ci_max < -2) || (Ci_max > 2) || (Ci_min >= Ci_max)) {
- Ci_min = -1.5; Ci_max = 1.5;
+ else if (target == 'max') {
+ var mymax =
+ parseFloat(document.getElementById(coord + "_min").value) +
+ parseFloat(document.getElementById(coord + "_scale").value);
+ document.getElementById(coord + "_max").value = roundCoord(mymax);
+ myscale = document.getElementById(coord + "_scale").value;
}
- document.getElementById("Ci_min").value = Ci_min;
- document.getElementById("Ci_max").value = Ci_max;
+ if (document.getElementById("proportional").checked) {
+ var otherscale = myscale *
+ document.getElementById("image_" + otherdim).value /
+ document.getElementById("image_" + owndim).value;
+ document.getElementById(othercoord + "_scale").value = roundCoord(otherscale);
+ var othermax =
+ parseFloat(document.getElementById(othercoord + "_min").value) +
+ parseFloat(document.getElementById(othercoord + "_scale").value);
+ document.getElementById(othercoord + "_max").value = roundCoord(othermax);
+ }
+}
- //var algorithm = gPref.getCharPref("mandelbrot.use_algorithm");
- var iterMax = parseInt(document.getElementById("iterMax").value);
- var algorithm = "numeric"; //"oo"
+function checkProportions() {
+ var prop = document.getElementById("proportional").checked;
+ if (!prop) {
+ recalcCoord("Cr", "scale");
+ }
+ gSyncPrefs.set("syncProportions", prop);
+}
+
+function roundCoord(floatval) {
+ // We should round to 10 decimals here or so
+ return parseFloat(floatval.toFixed(10));
+}
- var iWidth = canvas.width;
- if ((iWidth < 10) || (iWidth > 5000)) {
- iWidth = 300;
- canvas.width = iWidth;
+function adjustCoordsAndDraw(aC_min, aC_max) {
+ var iWidth = getAdjustVal("image.width");
+ var iHeight = getAdjustVal("image.height");
+
+ // correct coordinates
+ if (aC_min.r < -2)
+ aC_min.r = -2;
+ if (aC_max.r > 2)
+ aC_max.r = 2;
+ if ((aC_min.r > 2) || (aC_max.r < -2) || (aC_min.r >= aC_max.r)) {
+ aC_min.r = -2.0; aC_max.r = 1.0;
+ }
+ if (aC_min.i < -2)
+ aC_min.i = -2;
+ if (aC_max.i > 2)
+ aC_max.i = 2;
+ if ((aC_min.i > 2) || (aC_max.i < -2) || (aC_min.i >= aC_max.i)) {
+ aC_min.i = -1.3; aC_max.i = 1.3;
}
- var iHeight = canvas.height;
- if ((iHeight < 10) || (iHeight > 5000)) {
- iHeight = 300;
- canvas.height = iHeight;
+
+ var CWidth = aC_max.r - aC_min.r;
+ var CHeight = aC_max.i - aC_min.i;
+ var C_mid = new complex(aC_min.r + CWidth / 2, aC_min.i + CHeight / 2);
+
+ var CRatio = Math.max(CWidth / iWidth, CHeight / iHeight);
+
+ setVal("last_image.Cr_*", {Cr_min: C_mid.r - iWidth * CRatio / 2,
+ Cr_max: C_mid.r + iWidth * CRatio / 2});
+ setVal("last_image.Ci_*", {Ci_min: C_mid.i - iHeight * CRatio / 2,
+ Ci_max: C_mid.i + iHeight * CRatio / 2});
+
+ drawImage();
+}
+
+function drawImage() {
+ var canvas = gMainCanvas;
+ var context = gMainContext;
+
+ document.getElementById("calcTime").textContent = "--";
+
+ if (gCurrentImageData) {
+ gLastImageData = gCurrentImageData;
+ document.getElementById("backButton").disabled = false;
}
+ gColorPalette = getColorPalette(document.getElementById("palette").value);
+
+ var Cr_vals = getAdjustVal("last_image.Cr_*");
+ var Cr_min = Cr_vals.Cr_min;
+ var Cr_max = Cr_vals.Cr_max;
+
+ var Ci_vals = getAdjustVal("last_image.Ci_*");
+ var Ci_min = Ci_vals.Ci_min;
+ var Ci_max = Ci_vals.Ci_max;
+
+ var iterMax = getAdjustVal("iteration_max");
+ var algorithm = getAdjustVal("use_algorithm");
+
+ var iWidth = getAdjustVal("image.width");
+ var iHeight = getAdjustVal("image.height");
+
+ gCurrentImageData = {
+ C_min: new complex(Cr_min, Ci_min),
+ C_max: new complex(Cr_max, Ci_max),
+ iWidth: iWidth,
+ iHeight: iHeight,
+ iterMax: iterMax
+ };
+
+ canvas.width = iWidth;
+ canvas.height = iHeight;
+
context.fillStyle = "rgba(255, 255, 255, 127)";
context.fillRect(0, 0, canvas.width, canvas.height);
}
palette[1024] = [0, 0, 0, 255];
break;
+ case 'rainbow-squared1':
+ for (var i = 0; i < 34; i++) {
+ var cc = Math.floor(i * 255 / 33);
+ palette[i] = [cc, 0, 0, 255];
+ }
+ for (var i = 0; i < 137; i++) {
+ var cc = Math.floor(i * 255 / 136);
+ palette[34 + i] = [255, cc, 0, 255];
+ }
+ for (var i = 0; i < 307; i++) {
+ var cc = Math.floor(i * 255 / 306);
+ palette[171 + i] = [255 - cc, 255, cc, 255];
+ }
+ for (var i = 0; i < 546; i++) {
+ var cc = Math.floor(i * 255 / 545);
+ palette[478 + i] = [cc, 255 - cc, 255, 255];
+ }
+ palette[1024] = [0, 0, 0, 255];
+ break;
+ case 'rainbow-linear2':
+ for (var i = 0; i < 205; i++) {
+ var cc = Math.floor(i * 255 / 204);
+ palette[i] = [255, cc, 0, 255];
+ palette[204 + i] = [255 - cc, 255, 0, 255];
+ palette[409 + i] = [0, 255, cc, 255];
+ palette[614 + i] = [0, 255 - cc, 255, 255];
+ palette[819 + i] = [cc, 0, 255, 255];
+ }
+ palette[1024] = [0, 0, 0, 255];
+ break;
+ case 'rainbow-squared2':
+ for (var i = 0; i < 19; i++) {
+ var cc = Math.floor(i * 255 / 18);
+ palette[i] = [255, cc, 0, 255];
+ }
+ for (var i = 0; i < 74; i++) {
+ var cc = Math.floor(i * 255 / 73);
+ palette[19 + i] = [255 - cc, 255, 0, 255];
+ }
+ for (var i = 0; i < 168; i++) {
+ var cc = Math.floor(i * 255 / 167);
+ palette[93 + i] = [0, 255, cc, 255];
+ }
+ for (var i = 0; i < 298; i++) {
+ var cc = Math.floor(i * 255 / 297);
+ palette[261 + i] = [0, 255 - cc, 255, 255];
+ }
+ for (var i = 0; i < 465; i++) {
+ var cc = Math.floor(i * 255 / 464);
+ palette[559 + i] = [cc, 0, 255, 255];
+ }
+ palette[1024] = [0, 0, 0, 255];
+ break;
}
return palette;
}
// ########## UI functions ##########
+var zoomstart;
+var imgBackup;
+var zoomTouchID;
+
+var imgEvHandler = {
+ handleEvent: function(aEvent) {
+ var canvas = document.getElementById("mbrotImage");
+ var context = canvas.getContext("2d");
+ var touchEvent = aEvent.type.indexOf('touch') != -1;
+
+ // Bail out if this is neither a touch nor left-click.
+ if (!touchEvent && aEvent.button != 0)
+ return;
+
+ // Bail out if the started touch can't be found.
+ if (touchEvent && zoomstart &&
+ !aEvent.changedTouches.identifiedTouch(zoomTouchID))
+ return;
+
+ var coordObj = touchEvent ?
+ aEvent.changedTouches.identifiedTouch(zoomTouchID) :
+ aEvent;
+
+ switch (aEvent.type) {
+ case 'mousedown':
+ case 'touchstart':
+ if (touchEvent) {
+ zoomTouchID = aEvent.changedTouches.item(0).identifier;
+ coordObj = aEvent.changedTouches.identifiedTouch(zoomTouchID);
+ }
+ // left button - start dragzoom
+ zoomstart = {x: coordObj.clientX - canvas.offsetLeft,
+ y: coordObj.clientY - canvas.offsetTop};
+ imgBackup = context.getImageData(0, 0, canvas.width, canvas.height);
+ break;
+ case 'mouseup':
+ case 'touchend':
+ if (zoomstart) {
+ context.putImageData(imgBackup, 0, 0);
+ var zoomend = {x: coordObj.clientX - canvas.offsetLeft,
+ y: coordObj.clientY - canvas.offsetTop};
+
+ // make sure zoomend is bigger than zoomstart
+ if ((zoomend.x == zoomstart.x) || (zoomend.y == zoomstart.y)) {
+ // cannot zoom what has no area, discard it
+ zoomstart = undefined;
+ return;
+ }
+ if (zoomend.x < zoomstart.x)
+ [zoomend.x, zoomstart.x] = [zoomstart.x, zoomend.x];
+ if (zoomend.y < zoomstart.y)
+ [zoomend.y, zoomstart.y] = [zoomstart.y, zoomend.y];
+
+ if (gCurrentImageData) {
+ // determine new "coordinates"
+ var CWidth = gCurrentImageData.C_max.r - gCurrentImageData.C_min.r;
+ var CHeight = gCurrentImageData.C_max.i - gCurrentImageData.C_min.i;
+ var newC_min = new complex(
+ gCurrentImageData.C_min.r + zoomstart.x / gCurrentImageData.iWidth * CWidth,
+ gCurrentImageData.C_min.i + zoomstart.y / gCurrentImageData.iHeight * CHeight);
+ var newC_max = new complex(
+ gCurrentImageData.C_min.r + zoomend.x / gCurrentImageData.iWidth * CWidth,
+ gCurrentImageData.C_min.i + zoomend.y / gCurrentImageData.iHeight * CHeight);
+ }
+ else {
+ var newC_min = new complex(-2, -1.5);
+ var newC_max = new complex(1, 1.5);
+ }
+
+ adjustCoordsAndDraw(newC_min, newC_max);
+ }
+ zoomstart = undefined;
+ break;
+ case 'mousemove':
+ case 'touchmove':
+ if (zoomstart) {
+ context.putImageData(imgBackup, 0, 0);
+ context.strokeStyle = "rgb(255,255,31)";
+ context.strokeRect(zoomstart.x, zoomstart.y,
+ coordObj.clientX - canvas.offsetLeft - zoomstart.x,
+ coordObj.clientY - canvas.offsetTop - zoomstart.y);
+ }
+ break;
+ }
+ }
+};
+
+function drawIfEmpty() {
+ if (!gCurrentImageData) {
+ drawImage();
+ }
+}
+
function toggleSettings() {
var fs = document.getElementById("settings");
if (fs.style.display != "block") {
else {
fs.style.display = "none";
}
-}
\ No newline at end of file
+}
+
+function goBack() {
+ if (gLastImageData) {
+ document.getElementById("iterMax").value = gLastImageData.iterMax;
+ // use gLastImageData.iWidth, gLastImageData.iHeight ???
+ adjustCoordsAndDraw(gLastImageData.C_min, gLastImageData.C_max);
+ gLastImageData = undefined;
+ document.getElementById("backButton").disabled = true;
+ }
+}
+
+function setIter(aIter) {
+ if (aIter)
+ document.getElementById("iterMax").value = aIter;
+ else
+ aIter = document.getElementById("iterMax").value;
+ gSyncPrefs.set("iteration_max", aIter);
+}
+
+function setPalette(aPaletteID) {
+ if (aPaletteID)
+ document.getElementById("palette").value = aPaletteID;
+ else
+ aPaletteID = document.getElementById("palette").value;
+ gSyncPrefs.set("color_palette", aPaletteID);
+ gColorPalette = getColorPalette(aPaletteID);
+}
+
+function setAlgorithm(aAlgoID) {
+ if (aAlgoID)
+ document.getElementById("algorithm").value = aAlgoID;
+ else
+ aAlgoID = document.getElementById("algorithm").value;
+ gSyncPrefs.set("use_algorithm", aAlgoID);
+}
+
+function callBookmark(evtarget) {
+ if (evtarget.id == "bookmarkSave" || evtarget.id == "bookmarkSeparator")
+ return;
+ if (evtarget.id == "bookmarkOverview") {
+ adjustCoordsAndDraw(new complex(0,0), new complex(0,0));
+ return;
+ }
+
+ if (evtarget.getAttribute('bmRowID')) {
+ var iterMax = 0;
+ var C_min = null;
+ var C_max = null;
+
+ // Get coordinates for this row ID.
+ /*
+ while (statement.executeStep()) {
+ iterMax = ;
+ C_min = new complex(, );
+ C_max = new complex(, );
+ }
+
+ if (iterMax && C_min && C_max) {
+ setIter(iterMax)
+ adjustCoordsAndDraw(C_min, C_max);
+ }
+ */
+ }
+}
+
+var gSyncPrefs = {
+ objStore: "prefs",
+ shadow: {},
+
+ init: function(aCallback) {
+ // Fill the shadow from the DB.
+ if (!mainDB)
+ return;
+ var transaction = mainDB.transaction([this.objStore]);
+ var objStore = transaction.objectStore(this.objStore);
+ if (objStore.getAll) { // currently Mozilla-specific
+ objStore.getAll().onsuccess = function(event) {
+ gSyncPrefs.shadow = event.target.result;
+ aCallback();
+ };
+ }
+ else { // Use cursor (standard method).
+ objStore.openCursor().onsuccess = function(event) {
+ var cursor = event.target.result;
+ if (cursor) {
+ gSyncPrefs.shadow[cursor.key] = cursor.value;
+ cursor.continue();
+ }
+ else {
+ aCallback();
+ }
+ };
+ }
+ },
+
+ get: function(aKey) {
+ // Only use the shadow.
+ return this.shadow[aKey];
+ },
+
+ set: function(aKey, aValue) {
+ // First update the shadow.
+ this.shadow[aKey] = aValue;
+ // Now sync the DB with this.
+ if (!mainDB)
+ return;
+ var success = false;
+ var transaction = mainDB.transaction([this.objStore], "readwrite");
+ var objStore = transaction.objectStore(this.objStore);
+ var request = objStore.put(aValue, aKey);
+ request.onsuccess = function(event) {
+ success = true;
+ // Nothing else to be done!
+ };
+ request.onerror = function(event) {
+ // Errors could be handled here (but are ignored).
+ };
+ },
+
+ unset: function(aKey) {
+ // First update the shadow.
+ delete this.shadow[aKey];
+ // Now sync the DB with this.
+ if (!mainDB)
+ return;
+ var success = false;
+ var transaction = mainDB.transaction([this.objStore], "readwrite");
+ var request = transaction.objectStore(this.objStore).delete(aKey);
+ request.onsuccess = function(event) {
+ success = true;
+ // Nothing else to be done!
+ };
+ request.onerror = function(event) {
+ // Errors could be handled here (but are ignored).
+ }
+ }
+};
+
+var gBMStore = {
+ objStore: "bookmarks",
+
+ getList: function(aCallback) {
+ if (!mainDB)
+ return;
+ var transaction = mainDB.transaction([this.objStore]);
+ var objStore = transaction.objectStore(this.objStore);
+ if (objStore.getAll) { // currently Mozilla-specific
+ objStore.getAll().onsuccess = function(event) {
+ aCallback(event.target.result);
+ };
+ }
+ else { // Use cursor (standard method).
+ var BMs = {};
+ objStore.openCursor().onsuccess = function(event) {
+ var cursor = event.target.result;
+ if (cursor) {
+ BMs[cursor.key] = cursor.value;
+ cursor.continue();
+ }
+ else {
+ aCallback(BMs);
+ }
+ };
+ }
+ },
+
+ get: function(aKey, aCallback) {
+ if (!mainDB)
+ return;
+ var transaction = mainDB.transaction([this.objStore]);
+ var request = transaction.objectStore(this.objStore).get(aKey);
+ request.onsuccess = function(event) {
+ aCallback(request.result, event);
+ };
+ request.onerror = function(event) {
+ // Errors can be handled here.
+ aCallback(undefined, event);
+ };
+ },
+
+ set: function(aKey, aValue, aCallback) {
+ if (!mainDB)
+ return;
+ var success = false;
+ var transaction = mainDB.transaction([this.objStore], "readwrite");
+ var objStore = transaction.objectStore(this.objStore);
+ var request = objStore.put(aValue, aKey);
+ request.onsuccess = function(event) {
+ success = true;
+ if (aCallback)
+ aCallback(success, event);
+ };
+ request.onerror = function(event) {
+ // Errors can be handled here.
+ if (aCallback)
+ aCallback(success, event);
+ };
+ },
+
+ unset: function(aKey, aCallback) {
+ if (!mainDB)
+ return;
+ var success = false;
+ var transaction = mainDB.transaction([this.objStore], "readwrite");
+ var request = transaction.objectStore(this.objStore).delete(aKey);
+ request.onsuccess = function(event) {
+ success = true;
+ if (aCallback)
+ aCallback(success, event);
+ };
+ request.onerror = function(event) {
+ // Errors can be handled here.
+ if (aCallback)
+ aCallback(success, event);
+ }
+ },
+
+ clear: function(aCallback) {
+ if (!mainDB)
+ return;
+ var success = false;
+ var transaction = mainDB.transaction([this.objStore], "readwrite");
+ var request = transaction.objectStore(this.objStore).clear();
+ request.onsuccess = function(event) {
+ success = true;
+ if (aCallback)
+ aCallback(success, event);
+ };
+ request.onerror = function(event) {
+ // Errors can be handled here.
+ if (aCallback)
+ aCallback(success, event);
+ }
+ }
+};
projects / mandelbrot-web.git / blobdiff