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Code Issues Releases Wiki Activity

Add automatic saving and warning on exit with unsaved changes

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We re-use some of the existing syncer mechanism. It was already keeping
track of changes to tiddlers in the store when working with a tiddler
syncadaptor. Now it also tracks changes when there is no syncadaptor,
allowing us to provide a warning if there are unsaved changes.
This commit is contained in:
Jermolene
2014-02-06 21:36:30 +00:00
parent 8e8e31fb9f
commit a01bbd4b9c
19 changed files with 216 additions and 174 deletions
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56
core/modules/wiki.js
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@@ -877,62 +877,6 @@ exports.renderTiddler = function(outputType,title,options) {
return outputType === "text/html" ? container.innerHTML : container.textContent;
};
/*
Select the appropriate saver modules and set them up
*/
exports.initSavers = function(moduleType) {
moduleType = moduleType || "saver";
// Instantiate the available savers
this.savers = [];
var self = this;
$tw.modules.forEachModuleOfType(moduleType,function(title,module) {
if(module.canSave(self)) {
self.savers.push(module.create(self));
}
});
// Sort the savers into priority order
this.savers.sort(function(a,b) {
if(a.info.priority < b.info.priority) {
return -1;
} else {
if(a.info.priority > b.info.priority) {
return +1;
} else {
return 0;
}
}
});
};
/*
Save the wiki contents. Options are:
method: "save" or "download"
template: the tiddler containing the template to save
downloadType: the content type for the saved file
*/
exports.saveWiki = function(options) {
options = options || {};
var method = options.method || "save",
template = options.template || "$:/core/save/all",
downloadType = options.downloadType || "text/plain",
text = this.renderTiddler(downloadType,template),
callback = function(err) {
if(err) {
alert("Error while saving:\n\n" + err);
} else {
$tw.notifier.display("$:/messages/Saved");
}
};
// Call the highest priority saver that supports this method
for(var t=this.savers.length-1; t>=0; t--) {
var saver = this.savers[t];
if(saver.info.capabilities.indexOf(method) !== -1 && saver.save(text,method,callback)) {
return true;
}
}
return false;
};
/*
Return an array of tiddler titles that match a search string
text: The text string to search for