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Simplify code for Native FS checking

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Former-commit-id: d89b12ef023c4b64d6d769904c1093c36f9927f9 [formerly 3f4f9a089b6b1c455f80f42ac183479e31514115] [formerly 2afa51b968234f44fdb7297666dedf94eda082e7 [formerly 2a3d31d5df16ab053c6bc072b2fe544b4ef203a3]]
Former-commit-id: 272c55ebf3a898b052cb7dfd32ea27145c5ecdb4 [formerly 7d0f819c1cd5d529132048f1f601e9cd7585c551]
Former-commit-id: 0f62022e238c5c3e5a1941cb9bfab14e7b702145
This commit is contained in:
Jaifroid 2020-08-10 10:55:58 +03:00
parent 7bc08fa346
commit 64d60645ee
2 changed files with 26 additions and 20 deletions
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22
www/js/app.js
View File

@ -824,30 +824,14 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'util', 'cache', 'images', 'cook
cache.idxDB('pickedFileHandle', function(val) {
if (val) {
var handle = val;
// Check if we have persmission to open
handle.requestPermission({mode: 'read'}).then(function(readPermission) {
if (readPermission === 'granted') {
processNativeFileHandle(handle);
} else {
pickFileNativeFS();
}
}).catch(function(err) {
console.error('Unable to load previously picked file', err);
pickFileNativeFS();
cache.verifyPermission(handle, false).then(function(status) {
if (status) processNativeFileHandle(handle);
});
// handle.queryPermission({mode: 'read'}).then(function(permission) {
// if (permission === 'granted') {
// processNativeFileHandle(handle);
// } else if (permission === 'prompt') {
// // Do nothing
// }
// }).catch(function(err) {
// console.error('Unable to load previously picked file', err);
// });
}
});
}
});
document.getElementById('btnAbout').addEventListener('click', function () {
var btnAboutElement = document.getElementById('btnAbout');
if (/glyphicon-print/.test(btnAboutElement.innerHTML)) {

24
www/js/lib/cache.js
View File

@ -625,6 +625,27 @@ define(['q', 'uiUtil'], function(Q, uiUtil) {
return string;
}
/**
* Provide
*
* @param {Object} fileHandle The file handle that we wish to verify with the Native Filesystem API
* @param {Boolean} withWrite Indicates read only or read/write persmissions
* @returns {Promise<Boolean>} A Promise for a Boolean value indicating whether permission has been granted or not
*/
function verifyPermission(fileHandle, withWrite) {
var opts = withWrite ? { mode: 'readwrite' } : {};
return fileHandle.queryPermission(opts).then(function(permission) {
if (permission === "granted") return true;
return fileHandle.requestPermission(opts).then(function(permission) {
if (permission === 'granted') return true;
console.error('Permission for ' + fileHandle.name + ' was not granted: ' + permission);
return false;
}).catch(function(error) {
console.error('There was an error reading previously picked file ' + fileHandle.name, error);
});
});
};
/**
* Wraps a semaphor in a Promise. A function can signal that it is done by setting a sempahor to true,
* if it has first set it to false at the outset of the procedure. Ensure no other functions use the same
@ -676,6 +697,7 @@ define(['q', 'uiUtil'], function(Q, uiUtil) {
clear: clear,
wait: wait,
getItemFromCacheOrZIM: getItemFromCacheOrZIM,
replaceAssetRefsWithUri: replaceAssetRefsWithUri
replaceAssetRefsWithUri: replaceAssetRefsWithUri,
verifyPermission: verifyPermission
};
});