ReaderGoto: adds Go to % (#8395)

frontend/apps/reader/modules/readergoto.lua

@@ -43,8 +43,9 @@ function ReaderGoto:onShowGotoDialog()
     else
         input_hint = T("@%1 (1 - %2)", curr_page, self.document:getPageCount())
     end
+    input_hint = input_hint .. string.format("  %.2f%%", curr_page / self.document:getPageCount() * 100)
     self.goto_dialog = InputDialog:new{
-        title = _("Enter page number"),
+        title = _("Enter page number or percentage"),
         input_hint = input_hint,
         description = self.document:hasHiddenFlows() and
             _([[
@@ -55,36 +56,42 @@ x for an absolute page number
         buttons = {
             {
                 {
-                    text = _("Cancel"),
+                    text = _("Skim"),
                     callback = function()
                         self:close()
+                        self.skimto = SkimToWidget:new{
+                            document = self.document,
+                            ui = self.ui,
+                            callback_switch_to_goto = function()
+                                UIManager:close(self.skimto)
+                                self:onShowGotoDialog()
+                            end,
+                        }
+                        UIManager:show(self.skimto)
+
                     end,
                 },
                 {
-                    text = _("Go to page"),
-                    is_enter_default = true,
+                    text = _("Go to %"),
                     callback = function()
-                        self:gotoPage()
+                        self:gotoPercent()
                     end,
                 }
             },
             {
                 {
-                    text = _("Skim document"),
+                    text = _("Cancel"),
                     callback = function()
                         self:close()
-                        self.skimto = SkimToWidget:new{
-                            document = self.document,
-                            ui = self.ui,
-                            callback_switch_to_goto = function()
-                                UIManager:close(self.skimto)
-                                self:onShowGotoDialog()
-                            end,
-                        }
-                        UIManager:show(self.skimto)
-
                     end,
                 },
+                {
+                    text = _("Go to page"),
+                    is_enter_default = true,
+                    callback = function()
+                        self:gotoPage()
+                    end,
+                }
             },
         },
         input_type = "number",
@@ -161,6 +168,15 @@ function ReaderGoto:gotoPage()
     end
 end
 
+function ReaderGoto:gotoPercent()
+    local number = self.goto_dialog:getInputValue()
+    if number then
+        self.ui.link:addCurrentLocationToStack()
+        self.ui:handleEvent(Event:new("GotoPercent", number))
+        self:close()
+    end
+end
+
 function ReaderGoto:onGoToBeginning()
     local new_page = self.ui.document:getNextPage(0)
     if new_page then