271 lines
8.9 KiB
JavaScript
271 lines
8.9 KiB
JavaScript
define(["jquery", "google-helper", "underscore"], function($, googleHelper) {
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// Dependencies
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var core = undefined;
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var fileManager = undefined;
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var gdriveProvider = {
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providerId: PROVIDER_GDRIVE,
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providerName: "Gdrive",
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defaultPublishFormat: "template",
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useSync: false
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};
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function createSyncAttributes(id, etag, content, title) {
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var syncAttributes = {};
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syncAttributes.provider = PROVIDER_GDRIVE;
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syncAttributes.id = id;
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syncAttributes.etag = etag;
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syncAttributes.contentCRC = core.crc32(content);
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syncAttributes.titleCRC = core.crc32(title);
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var syncIndex = "sync." + PROVIDER_GDRIVE + "." + file.id;
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localStorage[syncIndex] = JSON.stringify(syncAttributes);
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return syncIndex;
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}
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function importFilesFromIds(ids) {
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googleHelper.downloadMetadata(ids, function(error, result) {
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if(error) {
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return;
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}
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googleHelper.downloadContent(result, function(error, result) {
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if(error) {
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return;
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}
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_.each(result, function(file) {
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var syncIndex = createSyncAttributes(file.id, file.etag, file.content, file.title);
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var fileIndex = fileManager.createFile(file.title, file.content, [syncIndex]);
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fileManager.selectFile(fileIndex);
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core.showMessage('"' + file.title + '" imported successfully from Google Drive.');
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});
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});
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});
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};
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gdriveProvider.importFiles = function() {
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googleHelper.picker(function(error, ids) {
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if(ids === undefined) {
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return;
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}
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var importIds = [];
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_.each(ids, function(id) {
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var syncIndex = "sync." + PROVIDER_GDRIVE + "." + id;
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var fileIndex = fileManager.getFileIndexFromSync(syncIndex);
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if(fileIndex !== undefined) {
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var title = localStorage[fileIndex + ".title"];
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core.showError('"' + title + '" was already imported');
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return;
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}
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importIds.push(id);
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});
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importFilesFromIds(importIds);
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});
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};
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gdriveProvider.exportFile = function(event, title, content, callback) {
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googleHelper.upload(undefined, undefined, title, content, undefined, function(error, result) {
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if (error) {
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callback(error);
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return;
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}
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var syncIndex = createSyncAttributes(result.id, result.etag, content, title);
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callback(undefined, syncIndex);
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});
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};
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gdriveProvider.exportManual = function(event, title, content, callback) {
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var id = core.getInputValue($("#input-sync-manual-gdrive-id"), event);
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if(!id) {
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return;
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}
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// Check that file is not synchronized with an other one
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var syncIndex = "sync." + PROVIDER_GDRIVE + "." + id;
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var fileIndex = fileManager.getFileIndexFromSync(syncIndex);
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if(fileIndex !== undefined) {
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var existingTitle = localStorage[fileIndex + ".title"];
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core.showError('File ID is already synchronized with "' + existingTitle + '"');
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callback(true);
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return;
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}
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googleHelper.upload(id, undefined, title, content, undefined, function(error, result) {
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if (error) {
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callback(error);
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return;
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}
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var syncIndex = createSyncAttributes(result.id, result.etag, content, title);
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callback(undefined, syncIndex);
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});
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};
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gdriveProvider.syncUp = function(uploadContent, uploadContentCRC, uploadTitle, uploadTitleCRC, syncAttributes, callback) {
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var syncContentCRC = syncAttributes.contentCRC;
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var syncTitleCRC = syncAttributes.titleCRC;
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// Skip if CRC has not changed
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if(uploadContentCRC == syncContentCRC && uploadTitleCRC == syncTitleCRC) {
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callback(undefined, false);
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return;
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}
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googleHelper.upload(syncAttributes.id, undefined, uploadTitle, uploadContent, syncAttributes.etag, function(error, result) {
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if(error) {
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callback(error, true);
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return;
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}
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syncAttributes.etag = result.etag;
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syncAttributes.contentCRC = uploadContentCRC;
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syncAttributes.titleCRC = uploadTitleCRC;
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callback(undefined, true);
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});
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};
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function syncDown(callback) {
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if (gdriveProvider.useSync === false) {
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callback();
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return;
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}
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var lastChangeId = parseInt(localStorage[PROVIDER_GDRIVE + ".lastChangeId"]);
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googleHelper.checkChanges(lastChangeId, function(error, changes, newChangeId) {
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if (error) {
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callback(error);
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return;
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}
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var interestingChanges = [];
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_.each(changes, function(change) {
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var syncIndex = "sync." + PROVIDER_GDRIVE + "." + file.id;
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var serializedAttributes = localStorage[syncIndex];
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if(serializedAttributes === undefined) {
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return;
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}
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// Store syncIndex to avoid 2 times formating
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change.syncIndex = syncIndex;
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// Delete
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if(change.deleted === true) {
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interestingChanges.push(change);
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return;
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}
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// Modify
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var syncAttributes = JSON.parse(serializedAttributes);
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if(syncAttributes.etag != change.file.etag) {
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interestingChanges.push(change);
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// Store syncAttributes to avoid 2 times parsing
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change.syncAttributes = syncAttributes;
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}
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});
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googleHelper.downloadContent(changes, function(error, changes) {
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if (error) {
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callback(error);
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return;
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}
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var updateFileTitles = false;
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_.each(changes, function(change) {
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var syncIndex = change.syncIndex;
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var fileIndex = fileManager.getFileIndexFromSync(syncIndex);
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// No file corresponding (file may have been deleted locally)
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if(fileIndex === undefined) {
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fileManager.removeSync(syncIndex);
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return;
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}
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var localTitle = localStorage[fileIndex + ".title"];
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// File deleted
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if (change.deleted === true) {
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fileManager.removeSync(syncIndex);
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updateFileTitles = true;
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core.showMessage('"' + localTitle + '" has been removed from Google Drive.');
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return;
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}
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var syncAttributes = change.syncAttributes;
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var localTitleChanged = syncAttributes.titleCRC != core.crc32(localTitle);
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var localContent = localStorage[fileIndex + ".content"];
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var localContentChanged = syncAttributes.contentCRC != core.crc32(localContent);
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var file = change.file;
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var fileTitleChanged = localTitle != file.title;
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var fileContentChanged = localContent != file.content;
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// Conflict detection
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if ((fileTitleChanged === true && localTitleChanged === true)
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|| (fileContentChanged === true && localContentChanged === true)) {
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fileManager.createFile(localTitle + " (backup)", localContent);
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updateFileTitles = true;
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core.showMessage('Conflict detected on "' + localTitle + '". A backup has been created locally.');
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}
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// If file title changed
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if(fileTitleChanged) {
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localStorage[fileIndex + ".title"] = file.title;
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updateFileTitles = true;
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core.showMessage('"' + localTitle + '" has been renamed to "' + file.title + '" on Google Drive.');
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}
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// If file content changed
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if(fileContentChanged) {
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localStorage[fileIndex + ".content"] = file.content;
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core.showMessage('"' + file.title + '" has been updated from Google Drive.');
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if(fileManager.isCurrentFileIndex(fileIndex)) {
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updateFileTitles = false; // Done by next function
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fileManager.selectFile(); // Refresh editor
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}
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}
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// Update syncAttributes
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syncAttributes.etag = file.etag;
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syncAttributes.contentCRC = core.crc32(file.content);
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syncAttributes.titleCRC = core.crc32(file.title);
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localStorage[syncIndex] = JSON.stringify(syncAttributes);
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});
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if(updateFileTitles) {
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fileManager.updateFileTitles();
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}
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localStorage[PROVIDER_GDRIVE + ".lastChangeId"] = newChangeId;
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callback();
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});
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});
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}
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gdriveProvider.publish = function(publishAttributes, title, content, callback) {
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googleHelper.upload(publishAttributes.fileId, undefined, title, content, undefined, callback);
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};
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gdriveProvider.newPublishAttributes = function(event) {
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var publishAttributes = {};
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publishAttributes.fileId = $("#input-publish-gdrive-fileid").val() || undefined;
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if(event.isPropagationStopped()) {
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return undefined;
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}
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return publishAttributes;
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};
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gdriveProvider.init = function(coreModule, fileManagerModule) {
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core = coreModule;
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fileManager = fileManagerModule;
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var state = localStorage["sync.gdrive.state"];
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if(state === undefined) {
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return;
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}
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localStorage.removeItem("sync.gdrive.state");
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state = JSON.parse(state);
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if (state.action == "create") {
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googleHelper.upload(undefined, state.folderId, GDRIVE_DEFAULT_FILE_TITLE,
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"", undefined, function(error, file) {
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if(error) {
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return;
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}
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var syncIndex = createSyncAttributes(file.id, file.etag, file.content, file.title);
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var fileIndex = fileManager.createFile(file.title, file.content, [syncIndex]);
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fileManager.selectFile(fileIndex);
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core.showMessage('"' + file.title + '" created successfully on Google Drive.');
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});
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}
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else if (state.action == "open") {
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var importIds = [];
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_.each(state.ids, function(id) {
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var syncIndex = "sync." + PROVIDER_GDRIVE + "." + id;
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var fileIndex = fileManager.getFileIndexFromSync(syncIndex);
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if(fileIndex !== undefined) {
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fileManager.selectFile(fileIndex);
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}
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else {
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importIds.push(id);
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}
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});
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importFilesFromIds(importIds);
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}
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};
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return gdriveProvider;
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}); |