Add extra filter for file picker

Makes it possible to be more flexible when filtering entries to be
displayed.

Signed-off-by: Vincent Petry <[email protected]>
Signed-off-by: nextcloud-command <[email protected]>

core/src/OC/dialogs.js

@@ -243,6 +243,7 @@ const Dialogs = {
  * @param {string} [type] Type of file picker : Choose, copy, move, copy and move
  * @param {string} [path] path to the folder that the the file can be picket from
  * @param {Object} [options] additonal options that need to be set
+ * @param {Function} [options.filter] filter function for advanced filtering
  */
  filepicker: function(title, callback, multiselect, mimetypeFilter, modal, type, path, options) {
  var self = this
@@ -296,6 +297,9 @@ const Dialogs = {
  sizeCol: t('core', 'Size'),
  modifiedCol: t('core', 'Modified')
  }).data('path', path).data('multiselect', multiselect).data('mimetype', mimetypeFilter).data('allowDirectoryChooser', options.allowDirectoryChooser)
+ if (typeof(options.filter) === 'function') {
+ self.$filePicker.data('filter', options.filter)
+ }
 
  if (modal === undefined) {
  modal = false
@@ -1124,6 +1128,7 @@ const Dialogs = {
  this.$filelistContainer.addClass('icon-loading')
  this.$filePicker.data('path', dir)
  var filter = this.$filePicker.data('mimetype')
+ var advancedFilter = this.$filePicker.data('filter')
  if (typeof (filter) === 'string') {
  filter = [filter]
  }
@@ -1142,6 +1147,10 @@ const Dialogs = {
  })
  }
 
+ if (advancedFilter) {
+ files = files.filter(advancedFilter)
+ }
+
  // Check if the showHidden input field exist and if it exist follow it
  // Otherwise just show the hidden files
  const showHiddenInput = document.getElementById('showHiddenFiles')