0 1 00:00:04,950 --> 00:00:05,783 Hello again. 1 2 00:00:05,783 --> 00:00:06,820 In previous lecture to what we did, 2 3 00:00:06,820 --> 00:00:09,560 let me run our project first. 3 4 00:00:09,560 --> 00:00:12,280 And here we updated our status bar, right? 4 5 00:00:12,280 --> 00:00:13,113 Here. 5 6 00:00:13,113 --> 00:00:15,490 We are displaying now how many letters 6 7 00:00:15,490 --> 00:00:17,610 and how many words we have, right? 7 8 00:00:17,610 --> 00:00:18,550 It's here. 8 9 00:00:18,550 --> 00:00:20,710 So, what I want to do? 9 10 00:00:20,710 --> 00:00:24,760 I want to create functions for my menu items, okay? 10 11 00:00:24,760 --> 00:00:29,760 And for the first one we are going to create new menu item, 11 12 00:00:30,522 --> 00:00:33,401 function for new menu item. 12 13 00:00:33,401 --> 00:00:34,516 What we need to do here? 13 14 00:00:34,516 --> 00:00:36,040 I need to find my new item. 14 15 00:00:36,040 --> 00:00:39,620 New is here and I will create here a command property. 15 16 00:00:39,620 --> 00:00:43,510 Here I will say command equals self.parent.newFile, okay? 16 17 00:00:43,510 --> 00:00:48,016 Here I will say command equals self.parent.newFile, okay? 17 18 00:00:48,016 --> 00:00:52,428 Here I will say command equals self.parent.newFile, okay? 18 19 00:00:52,428 --> 00:00:57,428 Here I will say command equals self.parent.newFile, okay? 19 20 00:00:58,684 --> 00:01:00,510 I am going to use parent 20 21 00:01:00,510 --> 00:01:04,560 because I will create this function in my main application. 21 22 00:01:04,560 --> 00:01:05,393 Okay? 22 23 00:01:05,393 --> 00:01:06,750 So here what I need to do? 23 24 00:01:06,750 --> 00:01:07,950 I need to copy this name 24 25 00:01:08,790 --> 00:01:10,663 and go here. 25 26 00:01:11,880 --> 00:01:14,940 Class main application and I will create my function. 26 27 00:01:14,940 --> 00:01:17,350 We can create it here actually. 27 28 00:01:17,350 --> 00:01:19,690 Before changed. 28 29 00:01:19,690 --> 00:01:21,290 Here what I will say? 29 30 00:01:21,290 --> 00:01:25,110 I will create def and newFile function, 30 31 00:01:25,110 --> 00:01:28,053 self and also let's use *args. 31 32 00:01:29,110 --> 00:01:31,890 Here what I need to do before creating my function? 32 33 00:01:31,890 --> 00:01:35,486 I need to create a variable here, a global variable. 33 34 00:01:35,486 --> 00:01:37,000 URL variable. 34 35 00:01:37,000 --> 00:01:39,186 To do that here what I will do? 35 36 00:01:39,186 --> 00:01:41,722 I will go to here, top, 36 37 00:01:41,722 --> 00:01:45,634 and I will create here a global url variable 37 38 00:01:45,634 --> 00:01:48,134 and I will name it url equals. 38 39 00:01:49,019 --> 00:01:50,640 And for now it's empty, okay? 39 40 00:01:50,640 --> 00:01:52,200 It is null. 40 41 00:01:52,200 --> 00:01:54,430 And after here what I need to do? 41 42 00:01:54,430 --> 00:01:55,973 I need to find my function. 42 43 00:01:57,490 --> 00:02:00,060 My function is here, right? 43 44 00:02:00,060 --> 00:02:02,603 First I will say global url. 44 45 00:02:04,400 --> 00:02:07,560 After that, here I will use try and except. 45 46 00:02:07,560 --> 00:02:12,393 Try and after that here I will say except, okay? 46 47 00:02:13,690 --> 00:02:15,677 For except I will say pass. 47 48 00:02:17,202 --> 00:02:18,710 Actually we are not going to use except, 48 49 00:02:18,710 --> 00:02:20,730 only try we are going to use. 49 50 00:02:20,730 --> 00:02:22,150 Here what I need to do? 50 51 00:02:22,150 --> 00:02:25,820 I will say if I want to create a new file what I need to do. 51 52 00:02:25,820 --> 00:02:30,820 First of all, I need to say here my url again equals empty. 52 53 00:02:30,940 --> 00:02:33,635 First of all, I need to say here my url again equals empty. 53 54 00:02:33,635 --> 00:02:34,468 It's already empty now, I know, 54 55 00:02:34,468 --> 00:02:37,250 but we are going to use this url variable 55 56 00:02:37,250 --> 00:02:38,680 in other functions. 56 57 00:02:38,680 --> 00:02:43,680 So that means it cannot be empty sometimes, okay? 57 58 00:02:44,280 --> 00:02:47,851 So first of all, when we create a new file, 58 59 00:02:47,851 --> 00:02:50,360 a new file means we didn't save it. 59 60 00:02:50,360 --> 00:02:52,210 So when we save our file, 60 61 00:02:52,210 --> 00:02:55,230 we will also create a url variable for our file. 61 62 00:02:55,230 --> 00:02:57,653 For the new file, we didn't save it, okay? 62 63 00:02:58,540 --> 00:02:59,373 It's a new file. 63 64 00:02:59,373 --> 00:03:03,220 That's why this file doesn't have any url, okay? 64 65 00:03:03,220 --> 00:03:04,767 And here we also... 65 66 00:03:04,767 --> 00:03:08,100 When your create a new file what you are going to do? 66 67 00:03:08,100 --> 00:03:13,100 Actually you delete all text from your text editor, okay? 67 68 00:03:13,410 --> 00:03:14,980 And here we are going to do it. 68 69 00:03:14,980 --> 00:03:19,980 I will say self.texteditor.delete and from the first one, 69 70 00:03:21,210 --> 00:03:23,133 first character until end. 70 71 00:03:24,240 --> 00:03:26,530 And here I will say end. 71 72 00:03:26,530 --> 00:03:28,173 Let me run our application. 72 73 00:03:29,720 --> 00:03:31,620 I will show you what we are going to do 73 74 00:03:31,620 --> 00:03:33,270 and you will understand it better. 74 75 00:03:33,270 --> 00:03:34,390 Our function. 75 76 00:03:34,390 --> 00:03:38,100 Here for example, you are here and you are doing something. 76 77 00:03:38,100 --> 00:03:39,910 This is your text editor. 77 78 00:03:39,910 --> 00:03:41,720 You want to create a new file. 78 79 00:03:41,720 --> 00:03:43,007 What you are going to do? 79 80 00:03:43,007 --> 00:03:45,960 You are going to click File and you say. 80 81 00:03:45,960 --> 00:03:50,010 You click New and now we delete everything. 81 82 00:03:50,010 --> 00:03:52,390 And we created a new file. 82 83 00:03:52,390 --> 00:03:56,820 This is how new file function will work for us, okay? 83 84 00:03:56,820 --> 00:03:59,540 And actually that's all for the file. 84 85 00:03:59,540 --> 00:04:01,690 Next lesson what we are going to do? 85 86 00:04:01,690 --> 00:04:04,030 We are going to create the function 86 87 00:04:04,030 --> 00:04:07,940 for this open menu item, okay? 87 88 00:04:07,940 --> 00:04:08,940 For now that's all. 88 89 00:04:08,940 --> 00:04:09,940 See you in the next!