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only update when necessary

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This commit is contained in:
Toon Baeyens 2020-03-19 15:06:44 +01:00
parent 5897787b5f
commit 8ef36d1868
1 changed files with 42 additions and 9 deletions
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51
notebook/static/tree/js/directoryreadme.js
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@ -15,21 +15,52 @@ define([
this.notebook_list = notebook_list;
this.base_url = options.base_url || utils.get_body_data("baseUrl");
this.contents = options.contents;
this.drawn_readme = null;
this.init_readme();
this.bind_events();
};
DirectoryReadme.prototype.fetch_readme = function() {
var that = this;
this.contents.get(utils.url_path_join(this.notebook_list.notebook_path, 'readme.md'), {type: 'file'}).then(
function(file) {
that.draw_readme(file);
},
function() {
that.clear_readme();
DirectoryReadme.prototype.find_readme = function() {
var files_in_directory = this.notebook_list.model_list.content;
for (var i = 0; i < files_in_directory.length; i++) {
var file = files_in_directory[i];
if(file.type === "file"
&& file.mimetype === "text/markdown"
&& file.name.toLowerCase().split(".")[0] === "readme"){
return file;
}
);
}
return null;
}
DirectoryReadme.prototype.needs_update = function(readme) {
if(this.drawn_readme === readme) return false;
if(this.drawn_readme === null || readme === null) return true;
if(this.drawn_readme.path !== readme.path) return true;
if(this.draw_readme.last_modified < readme.last_modified) return true;
return false;
}
DirectoryReadme.prototype.fetch_readme = function() {
var readme = this.find_readme();
if(this.needs_update(readme)) {
if(readme === null) {
this.clear_readme();
} else {
var that = this;
this.contents.get(readme.path, {type: 'file'}).then(
function(file) {
that.draw_readme(file);
},
function() {
that.clear_readme();
}
);
}
}
}
DirectoryReadme.prototype.bind_events = function () {
@ -71,10 +102,12 @@ define([
}
DirectoryReadme.prototype.clear_readme = function () {
this.drawn_readme = null;
this.element.hide();
}
DirectoryReadme.prototype.draw_readme = function (file) {
this.drawn_readme = file;
this.element.show();
this.title
.attr("href",