commit
bf61a5631d
@ -1,61 +0,0 @@ |
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'use strict' |
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function Storage (prefix) { |
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this.exists = function (name) { |
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return this.get(name) !== null |
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} |
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this.get = function (name) { |
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return window.localStorage.getItem(prefix + name) |
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} |
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this.set = function (name, content) { |
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try { |
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window.localStorage.setItem(prefix + name, content) |
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} catch (exception) { |
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return false |
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} |
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return true |
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} |
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this.remove = function (name) { |
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window.localStorage.removeItem(prefix + name) |
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return true |
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} |
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this.rename = function (originalName, newName) { |
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var content = this.get(originalName) |
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if (!this.set(newName, content)) { |
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return false |
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} |
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this.remove(originalName) |
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return true |
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} |
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function safeKeys () { |
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// NOTE: this is a workaround for some browsers
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return Object.keys(window.localStorage).filter(function (item) { return item !== null && item !== undefined }) |
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} |
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this.keys = function () { |
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return safeKeys() |
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// filter any names not including the prefix
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.filter(function (item) { return item.indexOf(prefix, 0) === 0 }) |
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// remove prefix from filename and add the 'browser' path
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.map(function (item) { return item.substr(prefix.length) }) |
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} |
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// on startup, upgrade the old storage layout
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safeKeys().forEach(function (name) { |
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if (name.indexOf('sol-cache-file-', 0) === 0) { |
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var content = window.localStorage.getItem(name) |
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window.localStorage.setItem(name.replace(/^sol-cache-file-/, 'sol:'), content) |
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window.localStorage.removeItem(name) |
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} |
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}) |
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// remove obsolete key
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window.localStorage.removeItem('editor-size-cache') |
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} |
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module.exports = Storage |
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